2.2 Troubleshooting flow
(1) List of troubles
Model FDC125VNP-W
Remote control display
Description of trouble Reference page
None Operates but does not cool. 55
None Operates but does not heat. 56
None Earth leakage breaker activated 57
None Excessive noise/vibration (1/3) 58
None Excessive noise/vibration (2/3) 59
None Excessive noise/vibration (3/3) 60
None Louver motor failur
e (FDT
,
FDE series)
61
None
Power source system error (Power source to indoor unit control PCB)
62
None Power
source
system error (Power
source
to remote control) 63
INSPECT I/U INSPECT I/U (When 1 or 2 remote controls are connected) 64
INSPECT I/U INSPECT I/U (Connection of 3 units or more remote controls) 65
Communication error at initial operation 66-68
E1 Remote control communication circuit error 69
E5 Communication error during operation 70
E6 Indoor heat exchanger temperature sensor anomaly 71
E7 Return air temperature sensor anomaly 72
E8 Heating overload operation 73
E9 Drain trouble
(FDT
,
FDU, FDUA series)
74
E10
Excessive number of connected indoor units (more than 17 units) by controlling with one remote control
75
E11
Address setting error of indoor units
76
E16 Indoor fan motor anomaly 77
E19 Indoor unit operation check, drain pump motor check setting error 78
E20 Indoor fan motor rotation speed anomaly 79
E28 Remote control temperature sensor anomaly 80
E35 Cooling overload operation 81
E36 Discharge pipe temperature error 82
E37 Outdoor heat exchanger temperature sensor anomaly 83
E38 Outdoor air temperature sensor anomaly 84
E39 Discharge pipe temperature sensor anomaly 85
E40 Service valve (gas side) closing operation 86
E42 Current cut 87・88
E47 Active filter voltage error 89
E48 Outdoor fan motor anomaly 90
E51 Power transistor anomaly 91
E57 Insufficient refrigerant amount or detection of service valve closure 92
E58 Current safe stop 93
E59 Compressor startup failure 94
E60 Compressor rotor lock error 95
'22 • PAC-SM-412
-
54
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