Mitsubishi Heavy Industries SCM71ZM-S1 - 8.2.2 Troubleshooting flow; (1) List of troubles

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239
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'17 • SCM-T-225
8.2.2 Troubleshooting flow
(1) List of troubles
Remote control display Description of trouble Reference page
None Operates but does not cool. 240
None Operates but does not heat. 241
None Earth leakage breaker activated 242
None Excessive noise/vibration (1/3) 243
None Excessive noise/vibration (2/3) 244
None Excessive noise/vibration (3/3) 245
None Louver motor failure (FDTC, FDEN and FDE only) 246
None
Power source system error (Power source to indoor control PCB) 247
None Power
source system error (Power source to remote control) 248
INSPECT I/U INSPECT I/U (When 1 or 2 remote controls are connected) 249
INSPECT I/U INSPECT I/U (Connection of 3 units or more remote controls) 250
WAIT
Communication error at initial operation 251−253
E1 Remote control communication circuit error 254
E5 Communication error during operation 255
E6 Indoor heat exchanger temperature thermistor anomaly 256
E7 Return air temperature thermistor anomaly 257
E8 Heating overload operation 258
E9 Drain trouble (FDTC and FDUM only) 259
E10
Excessive number of connected indoor units (more than 17 units) by controlling with one remote control 260
E11
Address setting error of indoor units 261
E16 Indoor fan motor anomaly (FDTC, FDE and FDUM only) 262
E19 Indoor unit operation check, drain motor check setting error 263
E20 Indoor fan motor rotation speed anomaly (FDTC, FDE and FDUM only) 264
E28 Remote control temperature thermistor anomaly 265
E35 Cooling high pressure operation 266
E36 Discharge pipe temperature error 267
E37 Outdoor heat exchanger temperature sensor anomaly 268
E38 Outdoor air temperature sensor anomaly 269
E39 Discharge pipe temperature sensor anomaly 270
E42 Current cut 271, 272
E45 Outdoor sub PCB communication error 273
E47 Active filter voltage error 274
E48 Outdoor fan motor anomaly 275
E51 Power transistor anomaly 276
E53 Suction pipe temperature error 277
E57 Insufficient refrigerant amount or detection of service valve closure 278
E58 Current safe stop 279
E59 Compressor startup failure 280
E60 Anomalous compressor rotor lock 281