Daikin Sky Air FAA71BUV1B Service Manual
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Daikin Sky Air FAA71BUV1B Service Manual

Indoor units
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Summary of Contents for Daikin Sky Air FAA71BUV1B

  • Page 1 Service manual Sky Air indoor units FAA71BUV1B FAA100BUV1B...
  • 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 Version log Version log Version code Description Date ESIE22-01 Document release February 2022 FAA71+100BUV1B Service manual Sky Air indoor units ESIE22-01 – 2022.02...

  • Page 4: Table Of Contents

    Table of Contents Table of Contents 1 Safety precautions Meaning of warnings and symbols..........................Dangers ................................... Warnings ..................................Cautions ..................................12 Notices .................................... 12 2 General operation 3 Troubleshooting To retrieve error codes and check error history ......................16 3.1.1 Via service monitoring tool ..........................
  • Page 5 Table of Contents Indoor unit main PCB ..............................53 4.5.1 Checking procedures ............................53 4.5.2 Repair procedures ............................58 Plate work ..................................60 4.6.1 To remove the front panel ..........................60 4.6.2 To remove the front grille ..........................61 4.6.3 To remove the electrical wiring box cover.....................

  • Page 6: Safety Precautions

    Safety precautions 1 Safety precautions The precautions described in this document cover very important topics, follow them carefully. All activities described in the service manual must be performed by an authorized person. If you are NOT sure how to install, operate or service the unit, contact your dealer. In accordance with the applicable legislation, it might be necessary to provide a logbook with the product containing at least: information on maintenance, repair work, results of tests, stand-by periods, …...

  • Page 7: Dangers

    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. WARNING Do NOT apply any permanent inductive or capacitance loads to the circuit without ensuring that this will NOT exceed the permissible voltage and current permitted for the equipment in use.
  • Page 8 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 9 Safety precautions WARNING Make sure the total refrigerant charge is in accordance with the room size in which the unit is installed: please consult the detailed instructions on charging and allowed room sizes in the installation manual. WARNING ▪ NEVER mix different refrigerants or allow air to enter the refrigerant system. ▪...
  • Page 10 Safety precautions WARNING ▪ In order to prevent oxygen deficiency and R32 combustion, keep the room well- ventilated for a healthy work environment. Do NOT work in a confined space. If a refrigerant leak is detected in a confined room or an inadequately ventilated location, do NOT start the work until the area has been ventilated appropriately.
  • Page 11 Safety precautions WARNING ▪ The area MUST be checked with an appropriate refrigerant detector prior to and during work, to ensure the technician is aware of potentially toxic or flammable atmospheres. ▪ Ensure that the leak detection equipment being used is suitable for use with all applicable refrigerants, i.e.

  • Page 12: Cautions

    Safety precautions WARNING Provide adequate measures to prevent that the unit can be used as a shelter by small animals. Small animals that make contact with electrical parts can cause malfunctions, smoke or fire. WARNING Prior to start working on systems containing flammable refrigerant, safety checks are necessary to ensure that the risk of ignition is minimised.
  • Page 13 Safety precautions NOTICE Make sure the field piping and connections are NOT subjected to stress. FAA71+100BUV1B Service manual Sky Air indoor units ESIE22-01 – 2022.02...

  • Page 14: General Operation

    Outdoor units Sky-Air systems have combination limits for different types of outdoor units (refer to Daikin Business Portal) and also limits for piping length and connection ratio for each indoor unit combination pattern (refer to the Engineering Databook of outdoor units).
  • Page 15 General operation There are different types of outdoor units, including Alpha, Advanced and Active series. Please be aware that some of the higher end outdoor series have more functions than others (e.g. infrastructure cooling setting,…). FAA71+100BUV1B Service manual Sky Air indoor units ESIE22-01 –...

  • Page 16: Troubleshooting

    Images are in English and for reference ONLY. For more details on the Madoka Assistant please refer to the BRC1H training course material which is available on the Daikin Business Portal. To retrieve the error code To indicate a system error, the controller displays on the messages zone of the home screen.
  • Page 17 Troubleshooting The active error is shown on the home screen. d Active error e Home screen f Error(s) details g Notifications screen 3 Tap the active error. Result: The detail(s) of the error(s) are shown on the Notifications screen. To check the error history To check the error history with the Madoka Assistant for BRC1H: Action Image for reference...

  • Page 18: Via The Wired Remote Control Brc1E

    Troubleshooting Action Image for reference Result Tap Error history. The Error history screen is displayed. 3.1.3 Via the wired remote control BRC1E INFORMATION Images are in English and for reference ONLY. For more details on the BRC1E please refer to the user manual. To retrieve the error code In case of an error or warning, the operation lamp on the ON/OFF button blinks and an error message or warning is displayed at the bottom of the screen.
  • Page 19 Troubleshooting To check the error history Action Result Go to the basic screen. Cool Set to °C Press at least 4 seconds while the The Service Settings screen is backlight of the screen is lit. displayed. Select Error History Press. The Error History screen is displayed.

  • Page 20: Via The Wireless Controller Brc7

    Troubleshooting 3.1.4 Via the wireless controller BRC7 To retrieve the error code a INSPECTION/TEST button b Unit No. c UP button d DOWN button e MODE button f Left digit g Right digit 1 Press and hold INSPECTION/TEST button for 5 seconds. Result: The "unit indication"...

  • Page 21: Via The Wired Remote Control Brc1D

    Troubleshooting 7 Press UP/DOWN buttons to change the right digit of the error code. Result: The right digit changes as indicated below. UP button DOWN button 8 Continue to change until the matching buzzer sound*** is generated. Result: ***Possible buzzer sounds: Continuous buzzer;...

  • Page 22: To Activate Emergency Operation

    Troubleshooting 2 Press TEST button. Result: Indoor unit model code will be displayed. 3 Press TEST button. Result: Outdoor unit model code will be displayed. 4 Press TEST button. Result: TEST operation will be displayed. 5 Press TEST button for the last time to return to home screen. Result: The home screen appears.
  • Page 23 Troubleshooting Starting conditions In case the customer strongly needs the heating/cooling operation while waiting for the next service visit, you can manually operate the system by changing the emergency switch on the indoor unit and outdoor unit PCB from "normal" to "emergency".

  • Page 24: Error Based Troubleshooting

    Troubleshooting Component Forced cooling Forced heating Forced defrost Drain pump Additional info ▪ The unit will NOT regulate the temperature during emergency operation. ▪ During emergency operation, do NOT attempt to operate the system using the remote controller. The remote controller shows "88" while emergency operation is active on the indoor unit.

  • Page 25: A3-00 - Drain Water Level Abnormality

    Troubleshooting 3.3.2 A3-00 – Drain water level abnormality Trigger Effect Reset Float switch is open circuit Unit willl stop operating. Remote controller reset. during normal operation. To solve the error code INFORMATION It is recommended to perform the checks in the listed order. 1 Check the power supply to the indoor unit.

  • Page 26: A8-00 - Fan Motor Abnormality - Power Supply Abnormality

    Troubleshooting Possible cause: Faulty indoor unit main PCB. 2 Perform a check of the indoor unit fan motor. See "4.4  Indoor unit fan motor" [  49]. Possible cause: Faulty indoor unit fan motor. INFORMATION If all procedures listed above have been performed and the problem is still present, contact the helpdesk.

  • Page 27: C1-02 - Communication Abnormality Between Main Pcb And Option Pcb

    Troubleshooting 1 Check the power supply to the indoor unit. See "5.1 Electrical circuit" [  83]. Possible cause: ▪ Faulty or disturbance of the power supply (imbalance), ▪ Phase missing, ▪ Power drop, ▪ Short circuit. 2 Perform a power reset. If the error disappears and is raised again after a while, check for the presence of an external source causing electrical noise.

  • Page 28: C4-02 - Liquid Heat Exchanger Thermistor Short Circuit

    Troubleshooting INFORMATION If all procedures listed above have been performed and the problem is still present, contact the helpdesk. 3.3.7 C4-02 – Liquid heat exchanger thermistor short circuit Trigger Effect Reset Indoor unit liquid heat The unit stops and will Auto reset.

  • Page 29: C5-02 - Middle Heat Exchanger Thermistor Short Circuit

    Troubleshooting INFORMATION If all procedures listed above have been performed and the problem is still present, contact the helpdesk. 3.3.9 C5-02 – Middle heat exchanger thermistor short circuit Trigger Effect Reset Indoor unit middle heat The unit stops and will Auto reset.

  • Page 30: C6-00 - Compatibility Error Between Main Pcb And Fan Pcb

    Troubleshooting INFORMATION If all procedures listed above have been performed and the problem is still present, contact the helpdesk. 3.3.11 C6-00 – Compatibility error between main PCB and fan PCB Trigger Effect Reset Indoor unit main PCB Unit will stop operating. Reset via remote detected incompatible controller.

  • Page 31: C9-03 - Suction Air Thermistor Open Circuit

    Troubleshooting INFORMATION If all procedures listed above have been performed and the problem is still present, contact the helpdesk. 3.3.13 C9-03 – Suction air thermistor open circuit Trigger Effect Reset Indoor unit suction air The unit stops and will Auto reset. thermistor detected open resume operation in circuit.

  • Page 32: Remote Controller Air Thermistor Abnormality

    Troubleshooting INFORMATION If all procedures listed above have been performed and the problem is still present, contact the helpdesk. 3.3.15 CJ-00 – Remote controller air thermistor abnormality Trigger Effect Reset Remote controller air Indoor unit will continue Auto reset. thermistor read‑out is out operating, using indoor of range.

  • Page 33: U1-00 - Malfunction By Reverse Phase/Open Phase

    Troubleshooting Possible cause: Non‑condensables and/or humidity in the refrigerant circuit. 5 Perform a check of the compressor. See outdoor unit service manual. Possible cause: Faulty compressor or miswiring of the compressor power supply cable. 6 Perform a check of all expansion valve. See outdoor unit service manual. Possible cause: Faulty expansion valve.
  • Page 34 Troubleshooting Trigger Effect Reset Abnormal voltage drop is Unit will stop operating. Automatic restart after detected by the DC compressor stand‑by of voltage detection circuit. 3 minutes. Abnormal voltage rise is Unit will stop operating. Automatic restart after detected by the compressor stand‑by of overvoltage detection 3 minutes.

  • Page 35: U4-00 - Indoor/Outdoor Unit Communication Problem

    Troubleshooting INFORMATION If all procedures listed above have been performed and the problem is still present, contact the helpdesk. 3.3.19 U4-00 – Indoor/outdoor unit communication problem Trigger Effect Reset Communication failure Unit will stop operating. Power reset via outdoor between outdoor and unit.

  • Page 36: U5-00 - Communication Abnormality Between Indoor Unit Main Pcb And Remote Controller

    Troubleshooting Possible cause: Thermal interface grease NOT applied properly on the heat sink. INFORMATION If all procedures listed above have been performed and the problem is still present, contact the helpdesk. 3.3.20 U5-00 – Communication abnormality between indoor unit main PCB and remote controller Trigger Effect Reset...

  • Page 37: Indoor Unit, Outdoor Unit Mismatching Problem

    Troubleshooting 3.3.21 UA-00 – Indoor unit, outdoor unit mismatching problem Trigger Effect Reset Signal transmission Unit will stop operating. Power reset via outdoor between outdoor and unit. indoor unit abnormality. Improper combination of outdoor and indoor unit. To solve the error code INFORMATION It is recommended to perform the checks in the listed order.

  • Page 38: Communication Abnormality With Central Controller

    Troubleshooting INFORMATION If all procedures listed above have been performed and the problem is still present, contact the helpdesk. 3.3.23 UE-00 – Communication abnormality with central controller Trigger Effect Reset Transmission abnormality Unit will stop operating. Auto reset. with central controller. To solve the error code INFORMATION It is recommended to perform the checks in the listed order.

  • Page 39: Communication Abnormality Between Indoor Unit And Wireless Lan Adapter

    Troubleshooting To solve the error code INFORMATION It is recommended to perform the checks in the listed order. 1 Check if the refrigerant circuit is correctly charged. See "5.2  Refrigerant circuit" [  87]. Possible cause: Refrigerant shortage. 2 Check if the refrigerant circuit is clogged. See "5.2 Refrigerant circuit" [  87].

  • Page 40: Wireless Lan Adapter - Router Connection Abnormality

    1 Check the internet connection by connecting other devices (e.g. smartphones, TV, …) to the router. Possible cause: Faulty internet connection. 2 If internet connection is normal, check with the Daikin dealers. Possible cause: Maintenance or abnormality of the Daikin cloud. INFORMATION If all procedures listed above have been performed and the problem is still present, contact the helpdesk.

  • Page 41: Symptom Based Troubleshooting

    Troubleshooting 3.4 Symptom based troubleshooting 3.4.1 Operation does not start Check Detail When the operation lamp is off, there is ▪ Is the power supply breaker ON? a power failure. ▪ Do other electrical appliances work? Check the power supply. ▪...

  • Page 42: Operation Starts But The Unit Does Not Cool/Heat

    Troubleshooting Check Detail When the operation lamp blinks, there "3.3 Error based may be an error code, activating the troubleshooting" [  24]. protection device. Diagnose with remote controller indication. 3.4.3 Operation starts but the unit does not cool/heat Check Detail Check the electrical power supply. Is the rated voltage (±...

  • Page 43: Operating Noise And Vibrations

    Troubleshooting Check Detail Check the internal leakage of the 4‑way ▪ After compressor running valve 10  minutes, is there a temperature difference between the suction pipe and the discharge pipe? ▪ Is the pressure difference between the internal service port (small) and the gas pipe service port sufficient (>0.3MPa)? 3.4.4 Operating noise and vibrations...

  • Page 44: Abnormal High Pressure

    Troubleshooting 3.4.5 Abnormal high pressure In cooling mode Check item Detail Does the outdoor unit fan run Visual inspection normally? Is the outdoor unit heat exchanger Visual inspection clogged? Is there clogging before or after the ▪ Check if there is a temperature expansion valve (capillary)? difference before and after expansion valve (capillary).

  • Page 45: Abnormal Low Pressure

    Troubleshooting Check item Detail Is the refrigerant overcharged? Conduct refrigerant collection and vacuum drying, and then add proper amount refrigerant. 3.4.6 Abnormal low pressure Abnormally low pressure level is mostly caused by the evaporator side. The following contents are provided based on field checking of service engineer. Further, the number is listed in the order of degree of influence.

  • Page 46: Indoor Fan Starts Operating But The Compressor Does Not Operate

    Troubleshooting Check item Detail Is the outdoor unit installed under such Visual inspection conditions that short circuit easily occurs? Is there a shortage of refrigerant? Conduct refrigerant collection and vacuum drying, and then add proper amount refrigerant. 3.4.7 Indoor fan starts operating but the compressor does not operate Check Detail Check the power supply.

  • Page 47: Operation Starts And The Unit Stops Immediately

    Troubleshooting 3.4.8 Operation starts and the unit stops immediately Check Detail Check the power supply. ▪ Is the capacity of the safety breaker as specified? ▪ If the earth leakage breaker is too sensitive, then increase the set value of the earth leakage current of the breaker or replace the breaker.

  • Page 48: Unit Discharges White Mist

    Troubleshooting 3.4.10 Unit discharges white mist Check Detail Check installation conditions. ▪ Humid site. ▪ Dirty site. ▪ Oil mist. Check installation conditions. Dirty heat exchanger. Air filter. Dirty air filter. Fan motor. Defective fan motor. 3.4.11 Swing flap does not operate Symptom Check Detail...

  • Page 49: Components

    Components 4 Components CAUTION When replacing a component ALWAYS make sure the correct spare part for your unit is installed. 4.1 Drain pump Not available yet 4.2 Float switch Not available yet 4.3 Humidity sensor Not available yet 4.4 Indoor unit fan motor Not available yet 4.4.1 Checking procedures INFORMATION...
  • Page 50 Components Is the DC fan motor shaft friction Action normal? Replace the DC fan motor assembly, see "4.4.2 Repair procedures" [  52]. To perform an electrical check of the DC fan motor assembly 1 First perform a mechanical check of the DC fan motor assembly, see "4.4.1 Checking procedures" [  49].
  • Page 51 Components DC fan motor resistance measurements Action are correct? Continue with the next step. Replace the indoor unit fan motor, see "4.4.2 Repair procedures" [  52]. 8 Turn ON the power of the unit. 9 With the DC fan motor connector X20A disconnected from the indoor unit main PCB, measure the voltage on the connector pins 4-7 (= fan motor power supply) on the indoor unit main PCB.

  • Page 52: Repair Procedures

    Components 16 Manually (slowly) rotate the shaft of the indoor unit fan motor 1 turn and measure the voltage on the DC fan motor connector pins 1-4. Result: 4 pulses MUST be measured. Pulses are measured during fan motor Action shaft rotation? Perform a check of the indoor unit main PCB, see...

  • Page 53: Indoor Unit Main Pcb

    Components A FAA71B unit B FAA100B unit a Screw b Bracket c Indoor unit fan motor 2 Install (click) the brackets in the correct location. 3 Install and tighten the 2 screws to fix the brackets. 4 Install the switch box, see "4.6 Plate work" [  60].
  • Page 54 Components a Connector X27A Is the measured voltage on the indoor Action unit main PCB correct? Return to "4.5.1 Checking procedures" [  53] of the indoor unit main PCB and continue with the next procedure. Continue with the next step. 4 Check the power supply to the indoor unit, see "5.1.1 ...
  • Page 55 Components a HAP LED INFORMATION Make sure the correct software is available on the PCB. If NOT, update using the updater tool. Does the HAP LED blink in regular Action intervals (1 second ON/1 second OFF)? Return to "4.5.1 Checking procedures" [  53] of the indoor unit main PCB and continue with the next procedure.
  • Page 56 Components Is the correct spare part for the indoor Action unit main PCB installed? Return to "4.5.1 Checking procedures" [  53] of the indoor unit main PCB and continue with the next procedure. Replace the indoor unit main PCB, see "4.5.2 Repair procedures" [  58].
  • Page 57 Components a V DC out (+) terminal b V DC out (−) terminal Is the rectifier voltage on the indoor Action unit main PCB correct? Return to "4.5.1 Checking procedures" [  53] of the indoor unit main PCB and continue with the next procedure. Replace the indoor unit main PCB, see "4.5.2 Repair procedures" [...

  • Page 58: Repair Procedures

    Components a V DC out (+) b V AC in c V AC in d V DC out (–) INFORMATION When measuring on the front of the main PCB, make sure to locally remove the protective varnish with the test leads of the multi meter. 0.51~0.52 V 0.51~0.52 V 0.51~0.52 V...
  • Page 59 Components 1 Correct the wiring from the indoor unit power supply terminal to the PCB, see "7.2 Wiring diagram" [  93]. Is the problem solved? Action No further actions required. Return to "4.5.1 Checking procedures" [  53] of the indoor unit main PCB and continue with the next procedure.

  • Page 60: Plate Work

    Components a Tie strap b Ferrite core c Ground wire on power supply wiring terminal d Indoor unit main PCB 2 Connect all connectors to the indoor unit main PCB. INFORMATION Use the wiring diagram and connection diagram for correct installation of the connectors, see "7.2 Wiring diagram" [...

  • Page 61: To Remove The Front Grille

    Components a Panel tabs 2 Remove the front panel by pushing hooks on either side of the front panel towards the side of the unit and remove the panel. Or remove it by sliding the front panel either to the left or right and pulling it forward. a Panel hook 4.6.2 To remove the front grille CAUTION...

  • Page 62: To Remove The Electrical Wiring Box Cover

    Components a Hook 4 Making sure not to catch the horizontal flaps, remove the front grille by pulling in the direction of the arrow. 4.6.3 To remove the electrical wiring box cover TO OPEN THE SERVICE COVER 1 Remove 1 screw from the service cover. 2 Pull out the service cover horizontally away from the unit.

  • Page 63: To Remove The Switch Box

    Components NOTICE When closing the service cover, make sure that the tightening torque does NOT exceed 1.4 (±0.2) N•m. TO REMOVE THE ELECTRICAL WIRING BOX COVER Prerequisite: Remove the front grille. 1 Remove the 2 screws from the electrical wiring box. 2 Open the electrical wiring box cover by pulling the protruding part on the top of the cover.

  • Page 64: To Install The Switch Box

    Components A FAA71B unit a Wiring terminal X2M b Wiring terminal X1M c Screw (cover) d Cover e Screw (ground wire) f Indoor unit main PCB g Screw (switch box) h Switch box A FAA100B unit a Wiring terminal X2M b Wiring terminal X1M c Screw (cover) d Cover...
  • Page 65 Components A FAA71B unit a Wiring terminal X2M b Wiring terminal X1M c Screw (cover) d Cover e Screw (ground wire) f Indoor unit main PCB g Screw (switch box) h Switch box A FAA100B unit a Wiring terminal X2M b Wiring terminal X1M c Screw (cover) d Cover...

  • Page 66: To Re-Install The Front Grille

    Components 9 Connect the transmission wiring to the wiring terminal X1M. 4.6.6 To re-install the front grille 1 Install the front grille and firmly engage the upper hooks (3 for class 71, 4 for class 100). 2 Install the screws back (3 for class 71, 6 for class 100). 3 For class 100, re-install grille clamps and install the 3 screw covers (accessory).
  • Page 67 Components ▪ Pinhole, bright spot, black spot, white spot, black line, white line, foreign particle, bubble: The color of a small area is different from the remainder. The phenomenon does NOT change with voltage. ▪ Contrast variation: The color of a small area is different from the remainder. The phenomenon changes with voltage.

  • Page 68: Repair Procedures

    Components Is the installed software and EEPROM Action version correct? Return to the troubleshooting of the specific error and continue with the next procedure. Re-install the software with the Updater Tool see "4.7.2 Repair procedures" [  68]. To check the communication wiring between the remote controller and the unit PCB 1 Make sure that all wires between the remote controller user interface P1/P2 and the connector X30A: 7‑8 on the indoor unit main PCB are firmly and correctly connected, see...

  • Page 69: Swing Flap Motor

    Components Is the problem solved? Action Return to the troubleshooting of the specific error and continue with the next procedure. To adjust the settings 1 See the relevant documentation (installer reference guide, remote controller manual, …) to adjust the specific setting. Is the problem solved? Action No further actions required.
  • Page 70 Components Unit Pins Measured resistance (Ω) FAA71B 1‑2 325.5~374.5 1‑3 1‑4 1‑5 2‑3 602~798 2‑4 2‑5 3‑4 3‑5 4‑5 FAA100B 1‑2 353.4~406.6 1‑3 1‑4 1‑5 2‑3 653.6~866.4 2‑4 2‑5 3‑4 3‑5 4‑5 Swing flap motor resistance Action measurements are correct? Return to the troubleshooting of the specific error and continue with the next procedure.
  • Page 71 Components Unit Pins Measured resistance (Ω) FAA71B 1‑2 325.5~374.5 1‑3 1‑4 1‑5 2‑3 602~798 2‑4 2‑5 3‑4 3‑5 4‑5 FAA100B 1‑2 353.4~406.6 1‑3 1‑4 1‑5 2‑3 653.6~866.4 2‑4 2‑5 3‑4 3‑5 4‑5 Swing flap motor resistance Action measurements are correct? Replace the swing flap motor wiring harness, see "Repair...
  • Page 72 Components A FAA71B unit B FAA100B unit a Screw b Swing flap motor 3 Remove the swing flap motor from the coupling piece. 4 Disconnect the connector from the swing flap motor. 5 To install the swing flap motor, see "Repair procedures" [  71].

  • Page 73: Secondary Swing Flap Motor

    Components Is the problem solved? Action Return to the troubleshooting of the specific error and continue with the next procedure. To remove the swing flap motor wiring harness INFORMATION For class 100 units: Main and secondary swing flap motor are connected to the same wiring harness.
  • Page 74 Components Checking procedures To perform an electrical check of the swing flap motor Prerequisite: Stop the unit operation via the user interface. Prerequisite: Turn OFF the respective circuit breaker. Prerequisite: Remove the required plate work, see "4.6 Plate work" [  60]. 1 Disconnect the swing flap motor connector from the indoor unit main PCB. 2 Measure the resistance between the following pins of the motor connector.
  • Page 75 Components Swing flap motor resistance Action measurements are correct? Replace the swing flap motor wiring harness, see "Repair procedures" [  75]. Replace the swing flap motor, see "Repair procedures" [  75]. Repair procedures To remove the swing flap motor Prerequisite: Stop the unit operation via the user interface. Prerequisite: Turn OFF the respective circuit breaker.
  • Page 76 Components a Screw b Swing flap motor 3 Install and tighten the 3 screws to fix the swing flap motor. 4 Install both swing flaps in the indoor unit (by clicking it on). Is the problem solved? Action No further actions required. Return to the troubleshooting of the specific error and continue with the next procedure.

  • Page 77: Thermistors

    Components WARNING When reconnecting a connector to the PCB, make sure to connect it on the correct location and do NOT apply force, as this may damage the connector or connector pins of the PCB. 4 Install new tie straps to fix the wiring harness as needed. Is the problem solved? Action No further actions required.
  • Page 78 Components Name Symbol Location (PCB) Connector Reference (pins) (table) Air thermistor A1P (I/U) X16A:1‑2 Heat A1P (I/U) X18A:1‑2 exchanger thermistor Intermediate A1P (I/U) X17A:1‑3 heat exchanger thermistor 4 Determine the thermistor resistance that matches the measured temperature. Thermistor – Table A T °C kΩ...
  • Page 79 Components T °C kΩ T °C kΩ T °C kΩ T °C kΩ –9 106.03 23.91 6.91 –8 100.41 22.85 6.65 –7 95.14 21.85 6.41 –6 90.17 20.90 6.65 –5 85.49 20.00 6.41 –4 81.08 19.14 6.18 –3 76.93 18.32 5.95 –2 73.01...

  • Page 80: Repair Procedures

    Components Does the measured resistance of the Action thermistor match with the temperature determined resistance? Thermistor is OK. Return to the troubleshooting of the specific error and continue with the next procedure. Replace the specific thermistor, see "4.9.2 Repair procedures" [  80]. 4.9.2 Repair procedures To remove the thermistor Indoor unit air (room) thermistor...
  • Page 81 Components a Clip b Thermistor c Thermistor holder 4 Remove the thermistor from the thermistor holder. 5 Cut all tie straps that fix the thermistor harness. 6 Disconnect the thermistor connector from the appropriate PCB and remove the thermistor. 7 To install the thermistor, see "4.9.2 Repair procedures" [  80].
  • Page 82 Components 4 Fix the thermistor harness using new tie straps. Other refrigerant side thermistors 1 Pull the clip and install the thermistor in the specific thermistor holder. Make sure the clip is in the correct position (blocking the thermistor). a Clip b Thermistor c Thermistor holder 2 Route the thermistor harness towards the appropriate PCB.

  • Page 83: Third Party Components

    Third party components 5 Third party components 5.1 Electrical circuit 5.1.1 Checking procedures To check the power supply to the indoor unit Prerequisite: Stop the unit operation via the user interface. Prerequisite: Turn OFF the respective circuit breaker. 1 Remove the required plate work, see "4.6 Plate work" [  60].
  • Page 84 Third party components Is the wiring correctly executed, as Action indicated in the installation manual? Continue with the next step in this checking procedure. Modify the wiring, see the installation manual. To measure the F1-F2 transmission F1-F2 transmission is a D3Net rectangular waveform, 16 VDC ± 5 V with 16-5V amplitude that appears on the 16V base line: 16 V F1-F2 terminals on indoor units, outdoor units and central controllers are all...
  • Page 85 Third party components Examples of waveform distortions on D3Net and possible causes: Rounded waveforms at falling edges. Possible reasons: ▪ Excessive wire length, ▪ Excessive number connected devices, ▪ Branching (star connections). Ringing. Possible reasons: ▪ Transmission wiring very close to high voltage cables, ▪...

  • Page 86: Repair Procedures

    Third party components INFORMATION Correct the wiring as needed. Is the problem solved? Action No further actions required. Return to the troubleshooting of the specific error and continue with the next procedure. 5.1.2 Repair procedures To perform a communication reset NOTICE If an indoor unit is powered OFF when communication reset is performed, the outdoor unit will delete this indoor unit information since this unit will not be...

  • Page 87: Refrigerant Circuit

    Third party components 1 Make sure that all wires are firmly and correctly connected, see "7.2  Wiring diagram" [  93]. 2 Check the continuity of all wires. 3 Replace any damaged or broken wires. INFORMATION If applicable, also check the electrical components between the main power supply terminal and the indoor unit power supply terminal (e.g.

  • Page 88: External Factors

    Third party components Is the problem solved? Action Return to the troubleshooting of the specific error and continue with the next procedure. 5.4 External factors 5.4.1 Checking procedures To check the outdoor temperature 1 The temperature ranges for the different operation modes of the unit can be found in the databook on Business Portal.

  • Page 89: 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 90: To Clean The Air Outlet And Exterior

    Maintenance 6.3 To clean the air outlet and exterior WARNING Do NOT let the indoor unit get wet. Possible consequence: Electrical shock or fire. Clean with a soft cloth. If it is difficult to remove stains, use water or neutral detergent.

  • Page 91: To Clean The Air Filters

    Maintenance 6.5 To clean the air filters When to clean the air filter: ▪ Rule of thumb: Clean every 6  months. If the air in the room is extremely contaminated, increase the cleaning frequency. ▪ Depending on the settings, the user interface can display the "Time to clean filter"...

  • Page 92: Technical Data

    Technical data 7 Technical data 7.1 Detailed information setting mode 7.1.1 Detailed information setting mode: Indoor unit See the installer reference guide on business portal for more information. 7.1.2 Detailed information setting mode: Remote controller See the installer reference guide on business portal for more information. FAA71+100BUV1B Service manual Sky Air indoor units...

  • Page 93: Wiring Diagram

    Technical data 7.2 Wiring diagram 7.2.1 Wiring diagram: Indoor unit Unified wiring diagram legend For applied parts and numbering, refer to the wiring diagram on the unit. Part numbering is by Arabic numbers in ascending order for each part and is represented in the overview below by "*"...
  • Page 94 Technical data Symbol Meaning Heater FU*, F*U, (for characteristics, refer to Fuse PCB inside your unit) Connector (frame ground) Harness H*P, LED*, V*L Pilot lamp, light emitting diode Light emitting diode (service monitor green) HIGH VOLTAGE High voltage Intelligent eye sensor IPM* Intelligent power module K*R, KCR, KFR, KHuR, K*M...
  • Page 95 Technical data Symbol Meaning Float switch S*NG Refrigerant leak detector S*NPH Pressure sensor (high) S*NPL Pressure sensor (low) S*PH, HPS* Pressure switch (high) S*PL Pressure switch (low) Thermostat S*RH Humidity sensor S*W, SW* Operation switch SA*, F1S Surge arrester SR*, WLU Signal receiver Selector switch SHEET METAL...
  • Page 96 Technical data Wiring diagram INFORMATION The diagrams shown in this manual may be incorrect due to changes/updates to the unit. Correct diagrams are supplied with the unit and can also be found in the technical data book. Wireless remote cotroller (Receiver/display unit) (optional accessory) ｔ゜...

  • Page 97: Piping Diagram

    Technical data 7.3 Piping diagram 7.3.1 Piping diagram: Indoor unit INFORMATION The diagrams shown in this manual may be incorrect due to changes/updates to the unit. Correct diagrams are supplied with the unit and can also be found in the technical data book.

  • Page 98: Component Overview

    Technical data 7.4 Component overview 7.4.1 Component overview: Indoor unit FAA71B a Heat exchanger b Intermediate heat exchanger thermistor R3T c Fan motor M1F d Heat exchanger thermistor R2T e Swing flap f Swing flap motor g Switch box h Indoor unit main PCB i Room thermistor R1T FAA71+100BUV1B Service manual...
  • Page 99 Technical data FAA100B a Heat exchanger b Intermediate heat exchanger thermistor R3T c Fan motor M1F d Heat exchanger thermistor R2T e Main swing flap f Secondary swing flap g Secondary swing flap motor M2S h Main swing flap motor M1S i Switch box j Indoor unit main PCB k Room thermistor R1T...

  • Page 100: Field Information Report

    Technical data 7.5 Field information report See next page. FAA71+100BUV1B Service manual Sky Air indoor units ESIE22-01 – 2022.02...
  • Page 101 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 102 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 103: Service Tools

    Technical data 7.6 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 104: Field Settings

    Technical data 7.7 Field settings 7.7.1 To retrieve the field settings Via the wired remote controller BRC1E INFORMATION Images are in English and for reference ONLY. For more details on the BRC1E please refer to the user manual. To access the field settings screen Action Result Go to the basic screen.
  • Page 105 Technical data Action Result Highlight the Second Code No. of Field Settings Unit No. Mode the First Code No. to be changed. Return Setting Select the desired Second Code Multiple identical mode number settings are available. In case of group total settings Action Result Highlight the Mode.
  • Page 106 Technical data Action Result Press. Setting details are determined and Field Settings screen is displayed. In case of multiple settings, repeat previous steps to change the settings Press twice. ▪ Backlight is lit. ▪ Once initialization is done, the basic screen is displayed. INFORMATION ▪...
  • Page 107 Images are in English and for reference ONLY. For more details on the Madoka Assistant please refer to the BRC1H training course material which is available on the Daikin Business Portal. To set as installer mode In order to retrieve the field settings, the Madoka Assistant app has to be set as installer mode.
  • Page 108 Technical data Action Image Result Tap Application version Installer mode screen is 5 times. displayed. Select (tap) the length The Madoka Assistant of time the Madoka app is set as installer Assistant app is set as mode. installer mode: ▪ Temporary 30 minutes ▪...
  • Page 109 Technical data Action Image Result Tap Field settings. The Field settings screen is displayed. Tap and select the type Field settings can now for which you want to be set for the selected set the field settings: type. ▪ Indoor unit ▪...
  • Page 110 Technical data Action Image Result In the case of setting ▪ case per indoor unit during individual setting per group control (When indoor unit, current Mode No. such as 20, settings 21, 22, 23, 25 are displayed. selected), tap and ▪...
  • Page 111 Technical data Action Image Result Tap Apply to remote Changes are applied to controller. the field settings. Tap Apply. Changes to the field settings are confirmed. Tap Return to field Field settings are saved. settings. FAA71+100BUV1B Service manual Sky Air indoor units ESIE22-01 –...

  • Page 112: Overview Of Field Settings For Indoor Units

    Technical data 7.7.2 Overview of field settings for indoor units The overview lists all possible settings for the indoor units. The availability of the setting depends on the indoor unit type, see "Field settings as per type indoor unit". Bold content is default setting. See indoor unit or remote controller manuals for more detailed information to access the field settings.
  • Page 113 Technical data Setting code Description function code Description setting Note 12/22 Output signal X1‑X2 of the optional KRP1 PCB kit Indoor unit Thermo ON Output Option Operation Output Malfunction Output External ON/OFF (T1/T2 input) = setting when forced Forced OFF ON/OFF is operated from outside.
  • Page 114 Technical data Setting code Description function code Description setting Note 13/23 Airflow setting (Ceiling height) Normal ceiling (H <2.7 m) Slightly higher ceiling 2.7 m <H <3 m High ceiling (3 m <H <3.5 m) Selection of airflow direction (set when an optional 4 directions blocking path kit has been installed) 3 directions 2 directions...
  • Page 115 Technical data Setting code Description function code Description setting Note 15/25 Drain pump operation cooling thermostat-off Delay off Keep operation Humidification during Thermo OFF (heating) Drain pump operation if humidifier is used (heating) Not equipped Heating operation: continuous operation, Heating operation: 3 minutes ON/5 minutes OFF Heating operation: 3 minutes ON/5 minutes OFF, Heating operation: 3 minutes ON/5 minutes OFF, Heating operation: 3 minutes ON/5 minutes OFF...
  • Page 116 Technical data BRC1E + BRC1H Setting code Description function code Description setting Note Permission Level Level 2 On-Off, Set Temp, Delay, Min-Max Operation, Fan speed, Swing Level 3 On-Off, Set Temp, Fan Speed Quiet Mode display Show Depends on Remocon type, see installer reference guide for Remote Controller Hide Setback function...
  • Page 117 Technical data Setting code Description function code Description setting Note Display of room temperature Which thermistor to show on remocon R1T on indoor unit For Auto-function and Setback Function Thermistor on remocon Selection mode display in auto mode Whether or not 'heating/cooling’ is displayed during automatic mode (otherwise only 'automatic' is mentioned on remocon) Permission Level Setting Level 2...
  • Page 118 Technical data Setting code Description function code Description setting Note Set temp mode changeover' visibility in the menu Visible in menu Hidden Temperature unit selection between ˚C and ˚F Disabled From factory, unit is locked to °C Enabled Selection visible in the menu to switch between temperature units Setback function Disabled Only for older remocons, where Home Leave function is present.
  • Page 119 Technical data Setting code Description function code Description setting Note Symbol view reference value (Heating / lower) +1°C +2°C +3°C +4°C +5°C +6°C +7°C +8°C +9°C +10°C FAA71+100BUV1B Service manual Sky Air indoor units ESIE22-01 – 2022.02...
  • Page 120 Technical data BRC1H Setting code Description function code Description setting Note Not used Not used Not used Controller thermistor adjustment –3°C Cooling –2.5°C –2°C –1.5°C –1°C –0.5°C 0°C +0.5°C +1°C +1.5°C +2°C +2.5°C +3°C Controller thermistor adjustment –3°C Heating –2.5°C –2°C –1.5°C –1°C...
  • Page 121 Technical data Setting code Description function code Description setting Note Controller thermistor adjustment –3°C Fan-only –2.5°C –2°C –1.5°C –1°C –0.5°C 0°C +0.5°C +1°C +1.5°C +2°C +2.5°C +3°C Not used Home screen Detailed Standard Back-light no operation timer 5 seconds 10 seconds 20 seconds Status indicator faintness 0% - OFF Back-light faintness...
  • Page 122 Technical data Setting code Description function code Description setting Note Touch switch sensitivity threshold No correction (left and center) Touch switch sensitivity threshold No correction (right and center) Touch switch sensitivity threshold No correction (left + center + right) Type controller R32 safety system Normal mode Full control Only buzzer...
  • Page 124 ESIE22-01 2022.02 Verantwortung für Energie und Umwelt...

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