Daikin Perfera FVXM25A - Default Chapter; Table of Contents

Table of Contents
Service manual
4
RXM20~71R + ARXM25~71R + FTXM20~71R + ATXM25~50R +
FVXM25~50A
Split New Perfera R32
ESIE20-11 – 2021.01
Table of Contents
1 General operation 7
2 Troubleshooting 8
2.1 To display the error code on the user interface ............................................................................................................ 8
2.2 To reset the error code via remote controller ............................................................................................................... 8
2.3 To reset the error code via outdoor unit ....................................................................................................................... 8
2.4 To perform a test run...................................................................................................................................................... 8
2.4.1 To perform a test run using the user interface ............................................................................................. 9
2.5 Error based troubleshooting........................................................................................................................................... 9
2.5.1 A1-00 – PCB abnormality ............................................................................................................................... 9
2.5.2 A5-00 – Outdoor unit: High pressure peak cut / freeze protection problem ............................................... 10
2.5.3 A6-00 – Indoor unit fan motor abnormality .................................................................................................. 11
2.5.4 AH-00 – Streamer unit abnormality............................................................................................................... 11
2.5.5 C4-00 – Heat exchanger temperature sensor problem................................................................................. 12
2.5.6 C9-00 – Room thermistor abnormality.......................................................................................................... 12
2.5.7 CC-00 – Humidity sensor abnormality ........................................................................................................... 13
2.5.8 E1-00 – Outdoor unit: PCB defect.................................................................................................................. 13
2.5.9 E3-00 – Outdoor unit: Actuation of high pressure switch............................................................................. 14
2.5.10 E5-00 – Outdoor unit: Overheat of inverter compressor motor................................................................... 15
2.5.11 E6-00 – Outdoor unit: Compressor startup defect........................................................................................ 16
2.5.12 E7-00 – Outdoor unit: Malfunction of outdoor unit fan motor .................................................................... 17
2.5.13 E8-00 – Outdoor unit: Power input overvoltage ........................................................................................... 17
2.5.14 EA-00 – Outdoor unit: Cool/heat switchover problem ................................................................................. 18
2.5.15 F3-00 – Outdoor unit: Malfunction of discharge pipe temperature............................................................. 19
2.5.16 F6-00 – Outdoor unit: Abnormal high pressure in cooling............................................................................ 20
2.5.17 F8-00 – System shutdown due to compressor internal temperature abnormality...................................... 20
2.5.18 H0-00 – Outdoor unit: Voltage/current sensor problem .............................................................................. 21
2.5.19 H3-00 – Outdoor unit: Malfunction of high pressure switch ........................................................................ 22
2.5.20 H6-00 – Outdoor unit: Malfunction of position detection sensor ................................................................ 23
2.5.21 H8-00 – Outdoor unit: Malfunction of compressor input system................................................................. 24
2.5.22 H9-00 – Outdoor unit: Malfunction of outdoor air thermistor ..................................................................... 24
2.5.23 J3-00 – Outdoor unit: Malfunction of discharge pipe thermistor................................................................. 25
2.5.24 J6-00 – Outdoor unit: Malfunction of heat exchanger thermistor ............................................................... 25
2.5.25 L3-00 – Outdoor unit: Electrical box temperature rise problem................................................................... 25
2.5.26 L4-00 – Outdoor unit: Malfunction of inverter radiating fin temperature rise ............................................ 26
2.5.27 L5-00 – Outdoor unit: Inverter instantaneous overcurrent .......................................................................... 27
2.5.28 P4-00 – Outdoor unit: Malfunction of radiating fin temperature sensor ..................................................... 28
2.5.29 U0-00 – Outdoor unit: Shortage of refrigerant ............................................................................................. 28
2.5.30 U2-00 – Outdoor unit: Defect of power supply voltage ................................................................................ 29
2.5.31 U4-00 – Indoor/outdoor unit communication problem................................................................................ 30
2.5.32 UA-00 – Indoor unit, outdoor unit mismatching problem ............................................................................ 31
2.5.33 UH-00 – Malfunction of system ..................................................................................................................... 32
2.6 Symptom based troubleshooting ................................................................................................................................... 33
2.6.1 Operation does not start................................................................................................................................ 33
2.6.2 Operation sometimes stops ........................................................................................................................... 33
2.6.3 Operation starts but the unit does not cool/heat ......................................................................................... 34
2.6.4 Operating noise and vibrations...................................................................................................................... 35
2.6.5 Abnormal high pressure ................................................................................................................................. 36
2.6.6 Abnormal low pressure .................................................................................................................................. 37
2.6.7 Indoor fan starts operating but the compressor does not operate.............................................................. 38
2.6.8 Operation starts and the unit stops immediately.......................................................................................... 39
2.6.9 Operation stops, unit cannot start for a while .............................................................................................. 39
2.6.10 Unit discharges white mist ............................................................................................................................. 40
2.6.11 Humidifying problem...................................................................................................................................... 40
2.6.12 Swing flap does not operate .......................................................................................................................... 40
3 Components 41
3.1 4-way valve...................................................................................................................................................................... 41
3.1.1 Checking procedures...................................................................................................................................... 41
3.1.2 Repair procedures .......................................................................................................................................... 45
3.2 Compressor ..................................................................................................................................................................... 49
3.2.1 Checking procedures...................................................................................................................................... 49
3.2.2 Repair procedures .......................................................................................................................................... 55
3.3 Compressor thermal protector....................................................................................................................................... 65
3.3.1 Checking procedures...................................................................................................................................... 65