Daikin RXTA30B2V1B, Service Manual

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Table of contents
Service manual
4
RXTM-R+RXTP-R+ARXTP-R+RXTA-B+FTXTA30B2V1B(W)
(B)+35M5V1B
R32 Optimized Heating 4 Split
ESIE21-12A – 2022.02
Table of contents
1 Safety precautions 7
1.1 Meaning of warnings and symbols................................................................................................................................. 7
1.2 Dangers ........................................................................................................................................................................... 8
1.3 Warnings ......................................................................................................................................................................... 8
1.4 Cautions .......................................................................................................................................................................... 14
1.5 Notices ............................................................................................................................................................................ 14
2 General operation 15
3 Troubleshooting 16
3.1 To display the error code on the user interface ............................................................................................................ 16
3.2 To reset the error code via remote controller ............................................................................................................... 16
3.3 To reset the error code via outdoor unit ....................................................................................................................... 16
3.4 To perform a test run...................................................................................................................................................... 16
3.4.1
To perform a test run in winter season ......................................................................................................... 17
3.4.2 To perform a test run using the user interface ............................................................................................. 17
3.5 Error based troubleshooting........................................................................................................................................... 17
3.5.1
A1-00 – PCB abnormality ............................................................................................................................... 17
3.5.2 A5-00 – Outdoor unit: High pressure peak cut / freeze protection problem ............................................... 18
3.5.3 A6-00 – Indoor unit fan motor abnormality .................................................................................................. 19
3.5.4 AH-00 – Streamer unit abnormality............................................................................................................... 19
3.5.5 C4-00 – Heat exchanger temperature sensor problem................................................................................. 20
3.5.6 C9-00 – Room thermistor abnormality .......................................................................................................... 20
3.5.7 CC-00 – Humidity sensor abnormality ........................................................................................................... 21
3.5.8 CE-00 – Intelligent thermal sensor abnormality............................................................................................ 21
3.5.9 E1-00 – Outdoor unit: PCB defect.................................................................................................................. 22
3.5.10 E3-00 – Outdoor unit: Actuation of high pressure switch............................................................................. 23
3.5.11 E5-00 – Outdoor unit: Overheat of inverter compressor motor................................................................... 24
3.5.12 E6-00 – Outdoor unit: Compressor startup defect........................................................................................ 25
3.5.13 E7-00 – Outdoor unit: Malfunction of outdoor unit fan motor .................................................................... 26
3.5.14 E8-00 – Outdoor unit: Power input overvoltage ........................................................................................... 26
3.5.15 EA-00 – Outdoor unit: Cool/heat switchover problem ................................................................................. 27
3.5.16 F3-00 – Outdoor unit: Malfunction of discharge pipe temperature............................................................. 28
3.5.17 F6-00 – Outdoor unit: Abnormal high pressure in cooling............................................................................ 29
3.5.18 F8-00 – System shutdown due to compressor internal temperature abnormality...................................... 29
3.5.19 H0-00 – Outdoor unit: Voltage/current sensor problem .............................................................................. 30
3.5.20 H3-00 – Outdoor unit: Malfunction of high pressure switch ........................................................................ 31
3.5.21 H6-00 – Outdoor unit: Malfunction of position detection sensor ................................................................ 32
3.5.22 H8-00 – Outdoor unit: Malfunction of compressor input system................................................................. 33
3.5.23 H9-00 – Outdoor unit: Malfunction of outdoor air thermistor ..................................................................... 33
3.5.24 J3-00 – Outdoor unit: Malfunction of discharge pipe thermistor................................................................. 34
3.5.25 J6-00 – Outdoor unit: Malfunction of heat exchanger thermistor ............................................................... 34
3.5.26 L3-00 – Outdoor unit: Electrical box temperature rise problem................................................................... 34
3.5.27 L4-00 – Outdoor unit: Malfunction of inverter radiating fin temperature rise ............................................ 35
3.5.28 L5-00 – Outdoor unit: Inverter instantaneous overcurrent .......................................................................... 36
3.5.29 P4-00 – Outdoor unit: Malfunction of radiating fin temperature sensor ..................................................... 37
3.5.30 U0-00 – Outdoor unit: Shortage of refrigerant ............................................................................................. 37
3.5.31 U2-00 – Outdoor unit: Defect of power supply voltage ................................................................................ 38
3.5.32 U4-00 – Indoor/outdoor unit communication problem................................................................................ 39
3.5.33 UA-00 – Indoor unit, outdoor unit mismatching problem ............................................................................ 40
3.6 Symptom based troubleshooting ................................................................................................................................... 42
3.6.1
Operation does not start................................................................................................................................ 42
3.6.2 Operation sometimes stops ........................................................................................................................... 42
3.6.3 Operation starts but the unit does not cool/heat ......................................................................................... 43
3.6.4 Operating noise and vibrations ...................................................................................................................... 44
3.6.5 Abnormal high pressure ................................................................................................................................. 45
3.6.6 Abnormal low pressure .................................................................................................................................. 46
3.6.7 Indoor fan starts operating but the compressor does not operate.............................................................. 47
3.6.8 Operation starts and the unit stops immediately.......................................................................................... 48
3.6.9 Operation stops, unit cannot start for a while .............................................................................................. 48
3.6.10 Unit discharges white mist ............................................................................................................................. 49
3.6.11 Humidifying problem...................................................................................................................................... 49
3.6.12 Swing flap does not operate .......................................................................................................................... 49
4 Components 50