Klimaire KSIV SERIES Troubleshooting Manual
  1. Manuals
  2. Brands
  3. Klimaire Manuals
  4. Air Conditioner
  5. KSIV SERIES
  6. Troubleshooting manual

Klimaire KSIV SERIES Troubleshooting Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

KSIV
TROUBLESHOOTING
SERIES
SERVICE MANUAL

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the KSIV SERIES and is the answer not in the manual?

Questions and answers

Joshua Longmire
June 23, 2025

p4 code. what does that mean?

0

Subscribe to Our Youtube Channel

Related Manuals for Klimaire KSIV SERIES

Summary of Contents for Klimaire KSIV SERIES

  • Page 1 KSIV TROUBLESHOOTING SERIES SERVICE MANUAL...

  • Page 2: Table Of Contents

    Troubleshooting Contents Safety Caution .......................3 General Troubleshooting ..................4 Complain Record Form ..................6 Information Inquiry ....................8 Error Diagnosis and Troubleshooting Without Error Code .......11 Remote maintenance ...................11 Field maintenance ..................12 Quick Maintenance by Error Code ..............17 Troubleshooting by Error Code ................18 E0 / F4 (EEPROM parameter error diagnosis and solution) ......18 E1 (Indoor and outdoor unit communication error diagnosis and solution) ...19 E2 (Zero-crossing detection error diagnosis and solution) ......21...
  • Page 3 Troubleshooting Contents F0 (Overload current protection diagnosis and solution) .......28 P0 (IPM malfunction or IGBT over-strong current protection diagnosis and solution) ......................29 7.10 P1 (Over voltage or too low voltage protection diagnosis and solution) ..30 7.11 P2 (High temperature protection of IPM module diagnosis and solution) ..31 7.12 P4 (Inverter compressor drive error diagnosis and solution) ......32 Check Procedures ....................33...

  • Page 4: Safety Caution

    1. Safety Caution WARNING Be sure to turn off all power supplies or disconnect all wires to avoid electric shock. While checking indoor/outdoor PCB, please equip oneself with antistatic gloves or wrist strap to avoid damage to the board. WARNING Electricity remains in capacitors even when the power supply is off.

  • Page 5: General Troubleshooting

    2. General Troubleshooting Error Display (Indoor Unit) When the indoor unit encounters a recognized error, the operation lamp will flash in a corresponding series, the timer lamp may turn on or begin flashing, and an error code will be displayed. These error codes are described in the following table: Operation Timer...
  • Page 6 Error Display (For 18K And Above 18K Outdoor Unit) There are 2 LED lights (RED color and GREEN color) welded in outdoor main board. After power on, LED show different actions when encounter different problems. Problem LED(GREEN) LED(RED) Solution Standby normally Operate normally Compressor driven chip EEPROM parameter error FLASH...

  • Page 7: Complain Record Form

    3. Complain Record Form Complain Record Form Request No.: Date: Installation Date: Service Date: Customer Information Name Telephone No. Home Address Email Product Information Indoor Unit Model Outdoor Unit Model Serial No. of indoor unit Serial No. of outdoor unit Working Mode □Cooling □Heating...
  • Page 8 Parameter Checking information by Remote controller Displaying code Displaying code meaning Display value Display value meaning Room temperature Indoor coil temperature Outdoor coil temperature Ambient temperature Outlet temperature of indoor coil Discharge temperature Sunction temperature Targeted Frequency Actual Frequency Indoor fan speed Outdoor fan speed EXV opening steps Compressor continuous...

  • Page 9: Information Inquiry

    4. Information Inquiry • To enter information inquiry status, complete the following procedure within ten seconds: • Press LED(or DO NOT DISTURB) 3 times. • Press SWING(or AIR DIRECTION) 3 times. • Finish 1 and 2 within 10 seconds, you will hear beeps for two seconds, which means the unit goes into parameter checking mode.
  • Page 10 Displayed Displayed code Explanation Meaning Additional Notes value Room temperature 1. All displayed temperatures use actual values. Indoor coil temperature 2. All temperatures are -1F,-1E,-1d,-1c,- -25,-24,-23,-22, displayed in °C regardless Outdoor coil 1b,-1A -21,-20 of remote used. temperature -19—99 -19—99 3.
  • Page 11 Displayed Displayed code Explanation Meaning Additional Notes value 0-FF 2-28 Reserved 5-20 5-25  Troubleshooting 10 ...

  • Page 12: Error Diagnosis And Troubleshooting Without Error Code

    5. Error Diagnosis and Troubleshooting Without Error Code WARNING Be sure to turn off unit before any maintenance to prevent damage or injury. Remote maintenance SUGGESTION: When troubles occur, please check the following points with customers before field maintenance. Problem Solution Unit will not start TS13 - TS14...

  • Page 13: Field Maintenance

    Field maintenance Problem Solution Unit will not start TS15 - TS16 Compressor will not start but fans run TS15 - TS16 Compressor and condenser (outdoor) fan will not start TS15 - TS16 Evaporator (indoor) fan will not start TS15 - TS16 Condenser (Outdoor) fan will not start TS15 - TS16 Unit runs, but shortly stops...
  • Page 14 1.Remote Maintenance Electrical Circuit Refrigerant Circuit Possible causes of trouble Unit will not start ☆ ☆ ☆ ☆ The power switch is on but fans will not start ☆ ☆ ☆ The temperature on the display board cannot be set ☆...
  • Page 15 1.Remote Maintenance Others Possible causes of trouble Unit will not start The power switch is on but fans will not start ☆ The temperature on the display board cannot be set Unit is on but the wind is not cold(hot) Unit runs, but shortly stops The unit starts up and stops frequently ☆...
  • Page 16 2.Field Maintenance Electrical Circuit Possible causes of trouble Unit will not start ☆ ☆ ☆ ☆ ☆ ☆ Compressor will not start but fans run ☆ ☆ ☆ ☆ ☆ Compressor and condenser (outdoor) fan will not start ☆ ☆ ☆...
  • Page 17 2.Field Maintenance Refrigerant Circuit Others Possible causes of trouble Unit will not start Compressor will not start but fans run ☆ Compressor and condenser (outdoor) fan will not start Evaporator (indoor) fan will not start Condenser (Outdoor) fan will not start Unit runs, but shortly stops ☆...

  • Page 18: Quick Maintenance By Error Code

    6. Quick Maintenance by Error Code If you do not have the time to test which specific parts are faulty, you can directly change the required parts according the error code. You can find the parts to replace by error code in the following table. Error Code Part requiring replacement Indoor PCB...

  • Page 19: Troubleshooting By Error Code

    7. Troubleshooting by Error Code E0 / F4 (EEPROM parameter error diagnosis and solution) Description: Indoor or outdoor PCB main chip does not receive feedback from EEPROM chip. Recommended parts to prepare: • Indoor PCB • Outdoor PCB Troubleshooting and repair: Shut off the power supply and turn it on 2 minutes later.

  • Page 20: E1 (Indoor And Outdoor Unit Communication Error Diagnosis And Solution)

    E1 (Indoor and outdoor unit communication error diagnosis and solution) Description: Indoor unit can not communicate with outdoor unit Recommended parts to prepare: • Indoor PCB • Outdoor PCB • Reactor Troubleshooting and repair: Power off, then restart the unit after 2 minutes. Does a problem remain? The unit is operating normally Measure Vs.
  • Page 21 Remarks: • Use a multimeter to test the DC voltage between 2 port(or S or L2 port) and 3 port(or N or S port) of outdoor unit. The red pin of multimeter connects with 2 port(or S or L2 port) while the black pin is for 3 port(or N or S port) . •...

  • Page 22: E2 (Zero-Crossing Detection Error Diagnosis And Solution)

    E2 (Zero crossing detection error diagnosis and solution) Description: When PCB does not receive zero crossing signal feedback for 4 minutes or the zero crossing signal time interval is abnormal. Recommended parts to prepare: • Connection wires • PCB Troubleshooting and repair: Check the connections and power supply.

  • Page 23: E3 / F5

    E3 / F5 (Fan speed is operating outside of normal range diagnosis and solution) Description: When indoor / outdoor fan speed keeps too low or too high for a certain time, the unit will stop and the LED will display the failure. Recommended parts to prepare: •...
  • Page 24 Index: 1. Indoor or Outdoor DC Fan Motor(control chip is in fan motor) Power on and when the unit is in standby, measure the voltage of pin1-pin3, pin4-pin3 in fan motor connector. If the value of the voltage is not in the range showing in below table, the PCB must has problems and need to be replaced. •...
  • Page 25 3. Indoor AC Fan Motor Power on and set the unit running in fan mode at high fan speed. After running for 15 seconds, measure the voltage of pin1 and pin2. If the value of the voltage is less than 100V(208~240V power supply) or 50V (115V power supply), the PCB must has problems and need to be replaced.

  • Page 26: Solution)

    E4/E5/F1/F2/F3 (Open circuit or short circuit of temperature sensor diagnosis and solution) Description: If the sampling voltage is lower than 0.06V or higher than 4.94V, the LED will display the failure. Recommended parts to prepare: • Connection wires • Sensors •...

  • Page 27: E7 (Indoor Pcb / Display Board Communication Error Diagnosis And Solution)

    E7 (Indoor PCB / Display board communication error diagnosis and solution) Description: Indoor PCB does not receive feedback from the display board. Recommended parts to prepare: • Communication wire • Indoor PCB • Display board Troubleshooting and repair: Power off, then restart the unit 2 minutes later Is it still displaying the error code? The unit functions normally...

  • Page 28: Ec (Refrigerant Leakage Detection Diagnosis And Solution)

    EC (Refrigerant Leakage Detection diagnosis and solution) Description: Define the evaporator coil temperature T2 of the compressor just starts running as Tcool. In the beginning 5 minutes after the compressor starts up, if T2 < Tcool-1°C(1.8°F) does not keep continuous 4 seconds and compressor running frequency higher than 50Hz does not keep for 3 minutes, and this situation happens 3 times, the display area will show “EC”...

  • Page 29: F0 (Overload Current Protection Diagnosis And Solution)

    F0 (Overload current protection diagnosis and solution) Description: An abnormal current rise is detected by checking the specified current detection circuit. Recommended parts to prepare: • Outdoor PCB • Connection wires • Compressor Troubleshooting and repair: Check the power supply. Is it in working order? Stop the unit.

  • Page 30: P0(Ipm Malfunction Or Igbt Over-Strong Current Protection Diagnosis And Solution)

    P0(IPM malfunction or IGBT over-strong current protection diagnosis and solution) Description: When the voltage signal the IPM sends to the compressor drive chip is abnormal, the display LED shows “P0” and the AC turn off. Recommended parts to prepare: • Connection wires •...

  • Page 31: P1(Over Voltage Or Too Low Voltage Protection Diagnosis And Solution)

    7.10 P1(Over voltage or too low voltage protection diagnosis and solution) Description: Abnormal increases or decreases in voltage are detected by checking the specified voltage detection circuit. Recommended parts to prepare: • Power supply wires • IPM module board • PCB •...

  • Page 32: P2(High Temperature Protection Of Ipm Module Diagnosis And Solution)

    7.11 P2(High temperature protection of IPM module diagnosis and solution) Description: If the temperature of IPM module is higher than a certain value, the LED will display the failure. Recommended parts to prepare: • Outdoor PCB • IPM module board Troubleshooting and repair: Check the fastening screws on the PCB and IPM radiator.

  • Page 33: P4(Inverter Compressor Drive Error Diagnosis And Solution)

    7.12 P4(Inverter compressor drive error diagnosis and solution) Description: An abnormal inverter compressor drive is detected by a special detection circuit, including communication signal detection, voltage detection, compressor rotation speed signal detection and so on. Recommended parts to prepare: • Connection wires •...

  • Page 34: Check Procedures

    8. Check Procedures 8.1 Temperature Sensor Check WARNING Be sure to turn off all power supplies or disconnect all wires to avoid electric shock. Operate after compressor and coil have returned to normal temperature in case of injury. 1. Disconnect the temperature sensor from PCB (Refer to Chapter 5&6. Indoor&Outdoor Unit Disassembly). 2.
  • Page 35 Resistance Value KSK103D33UEZ3 KSN140D21UFZ KTM240D57UMT Blue-Red Blue-Black 2.02Ω 1.28Ω 0.62Ω Red-Black Note: The picture and the value are only for reference, actual condition and specific value may vary. Troubleshooting 30  ...
  • Page 36 8.3 IPM Continuity Check WARNING Electricity remains in capacitors even when the power supply is off. Ensure the capacitors are fully discharged before troubleshooting. 1. Turn off outdoor unit and disconnect power supply. 2. Discharge electrolytic capacitors and ensure all energy-storage unit has been discharged. 3.
  • Page 37 The Klimaire logo is a registered Trademark of Klimaire Products inc. Copyright 2019 Klimaire Products Inc. 2190 NW 89 Place, Doral, FL 33172 - USA Tel: (305)593-8358 Fax (305) 675-2212 www.klimaire.com sales@klimaire.com The design and specifications are subject to change without prior notice for product improvement. Consult with the...

Table of Contents