Part 6 Troubleshooting - Daikin VRV III REYQ8PY1B Service Manual

SiBE37-701
1. Symptom-based Troubleshooting .......................................................234
2. Troubleshooting by Remote Controller ...............................................237
3. Troubleshooting by Indication on the Remote Controller ....................252
Troubleshooting
Troubleshooting
2.1 The INSPECTION / TEST Button.........................................................237
2.2 Self-diagnosis by Wired Remote Controller .........................................238
2.3 Self-diagnosis by Wireless Remote Controller .....................................239
2.4 Inspection Mode ...................................................................................242
2.5 Remote Controller Service Mode .........................................................243
2.6 Test Run Mode.....................................................................................245
2.7 Remote Controller Self-Diagnosis Function .........................................245
3.1 "A0" Indoor Unit: Error of External Protection Device............................252
3.2 "A1" Indoor Unit: PC Board Defect ........................................................253
3.3 "A3" Indoor Unit: Malfunction of Drain Level Control System (S1L) ......254
3.4 "A6" Indoor Unit: Fan Motor (M1F) Lock, Overload...............................256
"A6" Indoor Unit : Malfunction of Indoor Unit Fan Motor........................258
"A6" Indoor Uint : Overload / Overcurrent /
Lock of Indoor Unit Fan Motor..............................................................259
3.5 "A7" Indoor Unit: Malfunction of Swing Flap Motor (M1S).....................260
3.6 "A9" Electronic Expansion Valve Malfunction / Dust Clogging ..............262
"A9" Indoor Unit: Malfunction of Electronic Expansion Valve Coil.........264
3.7 "AF" Indoor Unit: Drain Level above Limit .............................................266
3.8 "AJ" Indoor Unit: Malfunction of Capacity Determination Device ..........267
3.9 "C4" Indoor Unit: Malfunction of Thermistor (R2T) for
Heat Exchanger....................................................................................268
3.10 "C5" Indoor Unit: Malfunction of Thermistor (R3T) for Gas Pipes .........269
3.11 "C9" Indoor Unit: Malfunction of Thermistor (R1T) for Suction Air.........270
3.12 "CJ" Indoor Unit: Malfunction of Thermostat Sensor
in Remote Controller ............................................................................271
3.13 "E1" Outdoor Unit: PC Board Defect .....................................................272
3.14 "E3" Outdoor Unit: Actuation of High Pressure Switch..........................273
3.15 "E4" Outdoor Unit: Actuation of Low Pressure Sensor..........................275
3.16 "E5" Outdoor Unit: Inverter Compressor Motor Lock.............................277
3.17 "E6" Outdoor Unit: STD Compressor Motor Overcurrent/Lock..............279
3.18 "E7" Outdoor Unit: Malfunction of Outdoor Unit Fan Motor ...................280
3.19 "E9" Outdoor Unit: Malfunction of Moving Part of
Electronic Expansion Valve (Y1E~Y5E)...............................................283
3.20 "F3" Outdoor Unit: Abnormal Discharge Pipe Temperature..................285
3.21 "F6" Outdoor Unit: Refrigerant Overcharged.........................................287
3.22 "F9" Outdoor Unit : Malfunction of
BS Unit Electronic Expansion Valve.....................................................288
3.23 "H7" Outdoor Unit: Abnormal Outdoor Fan Motor Signal ......................290
3.24 "H9" Outdoor Unit: Malfunction of Thermistor (R1T) for Outdoor Air.....292
3.25 "J2" Outdoor Unit: Current Sensor Malfunction ....................................293
3.26 "J3" Outdoor Unit: Malfunction of Discharge Pipe Thermistor
(R31T, R32T, R33T).............................................................................294
Part 6
231