Daikin Split Sensira R32 Service Manual
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Daikin Split Sensira R32 Service Manual

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FTXF20~71A
FTXF20~25B
FTXF20~42C
FTXF20~42D
FTXF20~42E
ATXF20~71A
ATXF20~42C
ATXF20~42D
ATXF20~42E
RXF20~71A
Service manual
Split Sensira R32
RXF20~60B
RXF20~42C
RXF20~42D
RXF20~42E
ARXF20~71A
ARXF20~42C
ARXF20~42D
ARXF20~42E

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Summary of Contents for Daikin Split Sensira R32

  • Page 1 Service manual Split Sensira R32 FTXF20~71A RXF20~60B FTXF20~25B RXF20~42C FTXF20~42C RXF20~42D FTXF20~42D RXF20~42E FTXF20~42E ARXF20~71A ATXF20~71A ARXF20~42C ATXF20~42C ARXF20~42D ATXF20~42D ARXF20~42E ATXF20~42E RXF20~71A...
  • Page 2 The present publication is drawn up by way of information only and does not constitute an offer binding upon Daikin Europe N.V.. Daikin Europe N.V. has compiled the content of this publication to the best of its knowledge. No express or implied warranty is given for the completeness, accuracy, reliability or fitness for particular purpose of its content and the products and services presented therein.
  • Page 3 • Maintenance: To clean the indoor unit heat exchanger in extreme condition added. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 4 • Indoor unit fan motor: Checking and repair procedures for new models added. • Wifi control PCB: Checking and repair procedures added. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 5: Table Of Contents

    Repair procedures ............................59 Compressor thermal protector............................64 3.3.1 Checking procedures ............................64 (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 6 Field settings: Indoor unit ..........................205 6.7.2 Field settings: Outdoor unit ........................... 206 Service manual (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 7: Safety Precautions

    Indicates a situation that could result in minor or moderate injury. NOTICE Indicates a situation that could result in equipment or property damage. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 8: Dangers

    WARNING Improper installation or attachment of equipment or accessories could result in electrical shock, short-circuit, leaks, fire or other damage to the equipment. ONLY use accessories, optional equipment and spare parts made or approved by Daikin unless otherwise specified. WARNING...
  • Page 9 WARNING Make sure installation, testing and applied materials comply with applicable legislation (on top of the instructions described in the Daikin documentation). WARNING Make sure the work site environment is clean and safe to work in. Beware of spilled fluids, like water, oil or other substances.
  • Page 10 In case of R32 (HFC) refrigerant, any flame in contact with (leaking) refrigerant is extremely dangerous. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 11 ▪ Make sure all covers are closed before starting up the unit. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 12 All maintenance staff and others working in the local area MUST be instructed on the nature of work being carried out. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 13 Make sure the ventilation machinery and outlets are operating adequately and are NOT obstructed. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 14: Cautions

    NOTICE Make sure the field piping and connections are NOT subjected to stress. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 15: Troubleshooting

    When the power turns back on after a power break, the previously selected mode will be resumed. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 16: To Perform A Test Run In Winter Season

    4 Perform a check of the indoor unit main PCB. See "3.7  Indoor unit main PCB" [  84]. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 17: A5-00 - Outdoor Unit: High Pressure Peak Cut / Freeze Protection Problem

    If all procedures listed above have been performed and the problem is still present, contact the helpdesk. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 18: A6-00 - Indoor Unit Fan Motor Abnormality

    If all procedures listed above have been performed and the problem is still present, contact the helpdesk. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 19: C9-00 - Room Thermistor Abnormality

    Possible cause: Faulty outdoor unit fan motor. 4 Perform a check of the compressor. See "3.2 Compressor" [  54]. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 20: E3-00 - Outdoor Unit: Actuation Of High Pressure Switch

    4 Check if the refrigerant circuit is correctly charged. See "4.2  Refrigerant circuit" [  155]. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 21: E5-00 - Outdoor Unit: Overheat Of Inverter Compressor Motor

    8 Check if the refrigerant circuit is correctly charged. See "4.2  Refrigerant circuit" [  155]. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 22: E6-00 - Outdoor Unit: Compressor Startup Defect

    8 Perform a check of the 4‑way valve. See "3.1 4-way valve" [  47]. Possible cause: Faulty 4‑way valve. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 23: E7-00 - Outdoor Unit: Malfunction Of Outdoor Unit Fan Motor

    Possible cause: Outdoor temperature is out of operation range. 2 Perform a check of the compressor. See "3.2 Compressor" [  54]. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 24: Outdoor Unit: Cool/Heat Switchover Problem

    6 Check if the refrigerant circuit is clogged. See "4.2 Refrigerant circuit" [  155]. Possible cause: Clogged refrigerant circuit. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 25: F3-00 - Outdoor Unit: Malfunction Of Discharge Pipe Temperature

    8 Perform check refrigerant side thermistors. "3.13 Thermistors" [  140]. Possible cause: Faulty refrigerant side thermistor(s). (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 26: F6-00 - Outdoor Unit: Abnormal High Pressure In Cooling

    If all procedures listed above have been performed and the problem is still present, contact the helpdesk. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 27: F8-00 - System Shutdown Due To Compressor Internal Temperature Abnormality

    2 Check if the power supply is compliant with the regulations. See "4.1 Electrical circuit" [  153]. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 28: H3-00 - Outdoor Unit: Malfunction Of High Pressure Switch

    ▪ Faulty or disturbance of the power supply (power supply MUST be within range of nominal operating voltage ±4%), ▪ Power drop, ▪ Short circuit. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 29: H6-00 - Outdoor Unit: Malfunction Of Position Detection Sensor

    If all procedures listed above have been performed and the problem is still present, contact the helpdesk. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 30: H8-00 - Outdoor Unit: Malfunction Of Compressor Input System

    If all procedures listed above have been performed and the problem is still present, contact the helpdesk. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 31: J3-00 - Outdoor Unit: Malfunction Of Discharge Pipe Thermistor

    Switch box temperature is Unit will stop operating. Manual reset via remote too high. controller. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 32: L4-00 - Outdoor Unit: Malfunction Of Inverter Radiating Fin Temperature Rise

    3 Perform a check of the main PCB. See "3.8 Main PCB" [  89]. Possible cause: Faulty main PCB. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 33: L5-00 - Outdoor Unit: Inverter Instantaneous Overcurrent

    7 Check if the power supply is compliant with the regulations. See "4.1 Electrical circuit" [  153]. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 34: P4-00 - Outdoor Unit: Malfunction Of Radiating Fin Temperature Sensor

    Refrigerant shortage Unit will stop operating. Automatic reset. detected. Power reset via outdoor unit. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 35: U2-00 - Outdoor Unit: Defect Of Power Supply Voltage

    1 Check if the power supply is compliant with the regulations. See "4.1 Electrical circuit" [  153]. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 36: U4-00 - Indoor/Outdoor Unit Communication Problem

    Possible cause: Faulty wiring between the outdoor unit and the indoor unit. 3 Perform a check of the main PCB. See "3.8 Main PCB" [  89]. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 37: Indoor Unit, Outdoor Unit Mismatching Problem

    "3.7  Indoor unit main PCB" [  84]. Possible cause: Faulty indoor unit main PCB. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 38 If all procedures listed above have been performed and the problem is still present, contact the helpdesk. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 39: Symptom Based Troubleshooting

    A power failure of 2 to 10 cycles stops a power failure. air conditioner operation. Check the power supply. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 40: Operation Starts But The Unit Does Not Cool/Heat

    Check the air filter. Is the air filter clean? (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 41: Operating Noise And Vibrations

    (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 42: Abnormal High Pressure

    Does air enter the refrigerant system? Conduct refrigerant collection and vacuum drying, and then add proper amount refrigerant. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 43: Abnormal Low Pressure

    If YES, the check valve is clogged. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 44: Indoor Fan Starts Operating But The Compressor Does Not Operate

    ▪ Cooling operation cannot be used when the outdoor temperature is below −10°C DB. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 45: Operation Starts And The Unit Stops Immediately

    ▪ Obstruction in the system. Check compressor. ▪ Overcurrent relay. ▪ Protection thermostat. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 46: Unit Discharges White Mist

    Check indoor unit PCB Connector connection (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 47: Components

    1787 Ω ± 10% Is the measured value correct? Action Continue with the next step. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 48 See the databook on Business Portal for the temperature range of the operation modes. 1 Connect the 4‑way valve connector to the appropriate PCB. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 49  185]). Is the flow correct? Action Skip the next step of this procedure. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 50 (suction, discharge). Compare with normal operation conditions of the unit. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 51: Repair Procedures

    4‑way valve pipes using an oxygen acetylene torch and remove the 4‑way valve pipes from the refrigerant pipes using pliers. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 52 4‑way valve and solder the 4‑way valve pipes to the refrigerant pipes. a 4‑way valve pipe b 4‑way valve c Putty d Insulation (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 53 Return to the troubleshooting of the specific error and continue with the next procedure. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 54: Compressor

    Wait for at least 10 minutes after the circuit breaker has been turned OFF, to be sure the rectifier voltage is below 10 V DC before proceeding. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 55 10 V DC before proceeding. 2 Remove the cover of the compressor wire terminals. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 56 4 Measure the resistance between the compressor motor windings U-V, V-W and U-W. Result: All measurements MUST be approximately the same. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 57 W. ALWAYS measure at the PCB side. Result: All measurements MUST be the same. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 58 Note the position of the Faston connectors on the compressor wire terminals to allow correct connection during installation. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 59: Repair Procedures

    10 V DC before proceeding. 2 Remove the cover of the compressor wire terminals. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 60 7 Supply nitrogen to the refrigerant circuit. The nitrogen pressure MUST NOT exceed 0.02 MPa. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 61 13 Install plugs or caps on the open pipe ends of the refrigerant piping to avoid dirt or impurities from entering the piping. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 62 8 Wrap a wet rag around the compressor pipes and any other components near the compressor and solder the compressor pipes to the refrigerant pipes. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 63 W Wire terminal W 12 Install the cover of the compressor wire terminals. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 64: Compressor Thermal Protector

    Prerequisite: Remove the compressor insulation. 1 Remove the cover of the compressor wire terminals. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 65 6 Measure the resistance on the compressor thermal protector. Result: The contact MUST be open (measured resistance = OL). (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 66: Repair Procedures

    Compressor wire terminals cover 2 Remove the compressor thermal protector with bracket from the compressor housing. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 67 1 Install the compressor thermal protector on the compressor thermal protector bracket. a Compressor thermal protector b Compressor thermal protector bracket (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 68: Expansion Valve

    3.4.1 Checking procedures INFORMATION It is recommended to perform the checks in the listed order. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 69 MUST be approximately the same. Name Symbol Location (PCB) Connector Winding resistance Main Main 46±4 Ω expansion valve (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 70 "3.4.1 Checking procedures" [  68]. Replace the expansion valve coil, "3.4.2 Repair procedures" [  72]. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 71 Result: Refrigerant MUST flow through the expansion valve. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 72: Repair Procedures

    Make sure to note the correct orientation (position) of the expansion valve coil before removal. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 73 2 Remove the putty. Keep for re-use. a Putty b Expansion valve pipe c Expansion valve body (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 74 (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 75 About the installation of the expansion valve motor NOTICE Select the correct type. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 76 Make sure to install the expansion valve coil in the correct position (orientation). (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 77: High Pressure Switch

    2 Fill the refrigerant circuit with nitrogen until pressurized just below operating pressure of the high pressure switch. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 78 7 Lower the pressure of the nitrogen in the refrigerant circuit just above reset pressure of the high pressure switch. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 79: Repair Procedures

    (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 80 7 Perform a pressure test, see "4.2.1 Checking procedures" [  155]. 8 Add refrigerant refrigerant circuit, "4.2.2  Repair procedures" [  159]. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 81: Indoor Unit Fan Motor

    4 Check the diode module by measuring the voltage between the following pins of the DC fan motor connector. Comm Voltage 0.992 V DC (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 82: Repair Procedures

    (if installed) on the right hand side of the fan motor cover for easier removal. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 83 Return to the troubleshooting of the specific error and continue with the next procedure. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 84: Indoor Unit Main Pcb

    See "To check the power supply to the indoor unit" ("4.1.2 Repair procedures" [  154]) for the next steps. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 85 1 Measure the continuity of the fuse. If no continuity is measured, the fuse has blown. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 86: Repair Procedures

    To remove the indoor unit main PCB Prerequisite: Stop the unit operation via the user interface. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 87 NOT apply force, as this may damage the connector or connector pins of the PCB. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 88 Make sure the fuse is plugged‑in correctly (contact with the fuse holder). a Fuse Is the problem solved? Action No further actions required. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 89: Main Pcb

    Continue with the next step. 3 Check the power supply to the unit, see "4.1.1 Checking procedures" [  153]. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 90 Prerequisite: First check the power supply to the main PCB, see "Checking procedures" [  89]. 1 Locate the HAP LED on the main PCB. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 91 Prerequisite: First perform all earlier main PCB checks, see "Checking procedures" [  89]. 1 Visit your local spare parts webbank. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 92 3 Disconnect the wiring from the compressor wire terminals U, V and W. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 93 11 Install the compressor wiring terminals cover. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 94 1 Measure the continuity of the fuse. If no continuity is measured, the fuse has blown. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 95 A (A)RXF20~35A + RXF20+25B + (A)RXF20~42C + (A)RXF42D units a + terminal b – terminal (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 96 3 Check the diode module in reference with the image and the table below. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 97 4 If the diode module is NOT OK, replace the main PCB, see "Repair procedures" [  101]. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 98 A (A)RXF20~35A + RXF20+25B + (A)RXF20~42C + (A)RXF42D units d DC+ e DC– (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 99 2 Check the power module IPM2 in reference with the image and the table below. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 100 0.475 V 0.475 V 0.475 V DC– 0.475 V DC– (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 101 2 Disconnect the power supply wires from the main power supply terminal X1M. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 102 1 Disconnect all connectors and Faston connectors from the main PCB. a Screw b PCB support (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 103 1 Apply grease to the PCB contact surface of the heat sink. Distribute the grease as evenly as possible. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 104 Prerequisite: Remove the required plate work, see "3.10 Plate work" [  124]. 1 Remove the fuse from the PCB. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 105 Return to "Checking procedures" [  89] of the PCB and continue with the next procedure. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 106: Class 50~71 Units

    Prerequisite: First check the power supply to the main PCB, see "Checking procedures" [  106]. 1 Locate the HAP LED on the main PCB. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 107 Prerequisite: Stop the unit operation via the user interface. 1 Turn OFF the respective circuit breaker. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 108 Prerequisite: First perform all earlier main PCB checks, see "Checking procedures" [  106]. 1 Turn ON the power of the unit. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 109 3 Check the diode module in reference with the image and the table below. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 110 2 Check the power module IPM1 in reference with the image and the table below. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 111 To remove the main PCB Prerequisite: Stop the unit operation via the user interface. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 112 ALWAYS apply new grease on the PCB heat sink. NOT doing so may cause the PCB to fail due to insufficient cooling. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 113 Return to "Checking procedures" [  106] of the PCB and continue with the next procedure. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 114: Outdoor Unit Fan Motor

    1 First perform a mechanical check of the DC fan motor assembly, see "Checking procedures" [  114]. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 115 Replace the DC fan motor, see "Repair procedures" [  117]. 9 Turn ON the power of the unit. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 116 5 Turn OFF the unit via the user interface. 6 Turn OFF the respective circuit breaker. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 117  124]. 2 Remove the nut that fixes the propeller fan blade assembly. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 118 1 Install the propeller fan blade assembly on the DC fan motor assembly. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 119: Class 50~71 Units

    Is the propeller fan blade assembly Action damaged? Replace the propeller fan blade assembly, see "Repair procedures" [  122]. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 120 6 Turn OFF the unit via the user interface. 7 Turn OFF the respective circuit breaker. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 121 13 Connect the DC fan motor connector to the PCB. Remove the plastic insert from the connector for easier measurement. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 122 3 Pull and remove the propeller fan blade assembly from the DC fan motor assembly. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 123 2 Install and tighten the nut to fix the propeller fan blade assembly. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 124: Plate Work

    To remove the refrigerant connection cover DANGER: RISK OF ELECTROCUTION DANGER: RISK OF BURNING/SCALDING 1× (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 125 2 Loosen and remove the screws that fix the top plate. a Screw b Top plate 3 Remove the top plate. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 126  124]. 1 Remove the insulation on the upper side of the switch box. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 127 Right side plate assembly 4 Remove the screws that fix the wire clamp. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 128 2 Install the right side plate assembly on the outdoor unit and fix it using the screws. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 129 6 Fix the wiring to the switch box using a new cable tie. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 130: Indoor Unit

    1 Hold the front panel by the panel tabs on both sides and open it. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 131 3 Push down the 3 upper hooks marked with a symbol with 3 circles. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 132 Prerequisite: Remove the front grille. 1 Remove 1 screw from the electrical wiring box. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 133 5 Disconnect the connectors of the indoor unit fan motor, the swing flap motor and the swing raster motor (if equipped) from the indoor unit PCB. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 134 1 Attach the front panel. Align the shafts with the slots and push them all the way in. 2 Close the front panel, see "3.10 Plate work" [  124]. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 135: Reactor

    Replace the reactor, see "3.11.2 Repair procedures" [  137]. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 136 4 Measure the inductance of the reactor using an LCR meter. Result: The inductance MUST be as follows: (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 137: Repair Procedures

    3 Remove the 2 screws that fix the reactor to the switch box. 4 Remove the reactor. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 138: Swing Flap Motor

    1 Disconnect the swing flap motor connector from the indoor unit main PCB. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 139: Repair Procedures

    1 Remove both swing flaps from the indoor unit (by clicking it out). 2 Remove the cover. a Cover b Screw c Swing flap motor (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 140: Thermistors

    Prerequisite: Turn OFF the respective circuit breaker. Prerequisite: Remove the required plate work, see "3.10 Plate work" [  124]. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 141 T °C kΩ T °C kΩ T °C kΩ –20 197.81 39.96 10.63 3.44 (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 142 10.0 –5 44.0 33.6 5 Disconnect the thermistor connector from the appropriate PCB. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 143 Continue with the next step. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 144 - Pull the clip that fixes the thermistor. - Remove the thermistor from the thermistor holder. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 145 ▪ Remove the complete set of thermistors. 6 To install the thermistor, see "Repair procedures" [  144]. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 146 (blocking the thermistor). a Clip b Thermistor c Thermistor holder d Insulation e Thermistor wire (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 147: Other Thermistors

    The thermistors may vary according to the specific unit. 3 Determine the thermistor resistance that matches the measured temperature. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 148 5 Check that the measured resistance value matches the resistance determined through the measured temperature (earlier step in the procedure). E.g: (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 149: Wifi Control Pcb

    3 Measure the power supply voltage between the pins 4‑5 on the wifi control PCB connector. Result: The measured voltage MUST be 10~16 V DC. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 150: Repair Procedures

    2 Carefully click the complete wifi control PCB assembly out of the indoor unit. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 151 2 Disconnect the wiring harness connector from the indoor unit main PCB. 3 Cut all tie straps (if any) that fix the wiring harness. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 152 Return to the troubleshooting of the specific error and continue with the next procedure. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 153: Third Party Components

    Return to the troubleshooting of the specific error and continue with the next procedure. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 154: Repair Procedures

    1 Make sure that all wires are firmly and correctly connected, see "6.2  Wiring diagram" [  169]. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 155: Refrigerant Circuit

    Return to the troubleshooting of the specific error and continue with the next procedure. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 156 Due to the relationship to pressure control and electronic expansion valve control, the amount of refrigerant needs to be examined according to operating conditions. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 157 (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 158 Prerequisite: Turn OFF the respective circuit breaker. 1 Wait for the refrigerant to reach the outdoor temperature. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 159: Repair Procedures

    2 Completely open the stop valves by screwing the stop valve screw counterclockwise. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 160 H High pressure V Vacuum R Refrigerant 3 To add refrigerant, see "4.2.2 Repair procedures" [  159]. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 161 (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 162 MUST be reached to allow the evaporation of the moisture will need (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 163: External Factors

    Wait for the outdoor temperature to return within the operating range. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 164 Return to the troubleshooting of the specific error and continue with the next procedure. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 165: Maintenance

    General maintenance/inspection checklist. Next to the maintenance instructions in this chapter, a general maintenance/inspection checklist is also available on the Daikin Business Portal (authentication required). The general maintenance/inspection checklist is complementary to the instructions in this chapter and can be used as a guideline and reporting template during maintenance.

  • Page 166: To Clean The Indoor Unit Heat Exchanger In Extreme Condition

    3 Wash the air filters with water or clean them with a vacuum cleaner. 4 Soak in lukewarm water for about 10 to 15 minutes. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 167 Return to the troubleshooting of the specific error and continue with the next procedure. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 168: Technical Data

    6.1.3 Detailed information setting mode: Remote controller See the installer reference guide on business portal for more information. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 169: Wiring Diagram

    When the main power is turned off and then back on again, operation will resume automatically. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 170 Suction pipe thermistor S6-S602 Connector Operation switch Varistor Terminal strip Ferrite core Wiring diagram 3D095416C (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 171 Transformer Fan motor Swing flap motor K1R (MR10) Magnetic relay Printed circuit board (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 172 Signal receiver Wiring diagram Field wiring Outdoor Transmission circuit Wireless remote control 3D0957876B Indoor (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 173 When the main power is turned off and then back on again, operation will resume automatically. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 174 IPM200 Signal receiver S501 S430 S200 3 S403 Wireless remote tﾟ 3D142366 (Horizontal) (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 175: Wiring Diagram: Outdoor Unit

    D401, D402 Diode Diode bridge E1, E2, HL1, HN1, S, HR1, HR2 Connection (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 176 Noise filter (ferrite core) Noise filter Wiring diagram Indoor Outdoor (Outdoor) (Discharge) (Condenser) 3D114611A (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 177 FU2, FU3 Fuse IPM* Intelligent power module K30R, K10R, MR4 Magnetic relay Reactor (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 178 3.15A IPM2 PTC1 Outdoor Field wiring : 3〜 3〜 (Outdoor) (Discharge) (Condenser) 3D134368 (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 179 FU1, FU2, FU3 Fuse IPM* Intelligent power module Live Compressor motor Fan motor Magnetic relay (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 180 Electronic expansion valve Reversing solenoid valve coil Ferrite core Noise filter Wiring diagram 3D090522C (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 181 E1, E2, HL1, HN1, S, U, V, W Connection FU1, FU2, FU3 Fuse IPM* Intelligent power module (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 182 Electronic expansion valve coil Reversing solenoid valve coil Ferrite core Noise filter Wiring diagram 3D100894C (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 183 E1, E2, HL1, HN1, S, U, V, W Connector FU1, FU2, FU3 Fuse IPM* Intelligent power module Live Compressor motor (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 184 For the power requirements, refer to the nameplate. Indoor Outdoor Outdoor Discharge Condenser 3D114452A (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 185: Piping Diagram

    Correct diagrams are supplied with the unit and can also be found in the technical data book. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 186 Correct diagrams are supplied with the unit and can also be found in the technical data book. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 187 Correct diagrams are supplied with the unit and can also be found in the technical data book. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 188 Correct diagrams are supplied with the unit and can also be found in the technical data book. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 189 Correct diagrams are supplied with the unit and can also be found in the technical data book. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 190 Correct diagrams are supplied with the unit and can also be found in the technical data book. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 191: Piping Diagram: Outdoor Unit

    Correct diagrams are supplied with the unit and can also be found in the technical data book. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 192 Correct diagrams are supplied with the unit and can also be found in the technical data book. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 193 Correct diagrams are supplied with the unit and can also be found in the technical data book. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 194 Correct diagrams are supplied with the unit and can also be found in the technical data book. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 195 Correct diagrams are supplied with the unit and can also be found in the technical data book. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 196 Correct diagrams are supplied with the unit and can also be found in the technical data book. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 197 Correct diagrams are supplied with the unit and can also be found in the technical data book. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 198 Correct diagrams are supplied with the unit and can also be found in the technical data book. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 199: Component Overview

    Swing flap motor f Room thermistor R1T PCB g Switch box h Indoor unit PCB (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 200: Component Overview: Outdoor Unit

    Fan motor h 4‑way valve coil q Fan i Main + inverter PCB (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 201: Field Information Report

    Technical data 6.5 Field information report See next page. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 202 In case a problem occurred on the unit which could not be resolved by using the content of this service manual or in case you have a problem which could be resolved but of which the manufacturer should be notified, we advise you to contact your distributor.
  • Page 203 Application information Application (house, apartment, office,…): New project or reimbursement: Heat emitters (radiators / under floor heating / fan coils /…): Hydraulic layout (simple schematic): Unit / Installation information Model name: Serial number: Installation / commissioning date: Software version hydro PCB A1P Software version hydro PCB A5P Software version user interface: Software version outdoor PCB:...

  • Page 204: Service Tools

    Technical data 6.6 Service tools 1 For an overview of the available service tools, check the Daikin Business Portal (authentication required). 2 Go to the tab After-sales support on the left navigation pane and select Technical support. 3 Click the button Service tools. An overview of the available service tools for the different products is shown.

  • Page 205: Field Settings

    19 Select 0 (0: fan ON, 1: fan OFF (factory setting)). 20 Press to confirm. (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...

  • Page 206: Field Settings: Outdoor Unit

    ▪ J11: Protection for error memory overwrite (only to be used during development) ▪ J12: No function for this unit (A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D + Service manual (A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C + (A)RXF20~42D + (A)RXF20~42E Split Sensira R32 ESIE18-12G – 2023.01...
  • Page 208 ESIE18-12G 2023.01 Verantwortung für Energie und Umwelt...

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