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126
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'17 • PAC-T-256
12.2 Troubleshooting flow
(1) List of troubles
FDTC, FDE, FDUM series
Remote controller display
Description of trouble
Reference page
None
Operates but does not cool.
127
None
Operates but does not heat.
128
None
Earth leakage breaker activated
129
None
Excessive noise/vibration (1/3)
130
None
Excessive noise/vibration (2/3)
131
None
Excessive noise/vibration (3/3)
132
None
Louver motor failure (FDTC and FDEN series)
133
None
Power source system error (Power source to indoor unit control PCB)
134
None
Power source system error (Power source to remote control)
135
INSPECT I/U
INSPECT I/U (When 1 or 2 remote controls are connected)
136
INSPECT I/U
INSPECT I/U (Connection of 3 units or more remote controls)
137
WAIT
Communication error at initial operation
138
‐
140
None
No display
141
E1
Remote controller communication circuit error
142
E5
Communication error during operation
143
E6
Indoor heat exchanger temperature thermistor anomaly
144
E7
Return air temperature thermistor anomaly
145
E8
Heating overload operation
146
E9
Drain trouble
147
E10
Excessive number of connected indoor units (more than 17 units) by controlling with one remote control
148
E11
Address setting error of indoor units
149
E16
Indoor fan motor anomaly
150
E19
Indoor unit operation check, drain motor check setting error
151
E20
Indoor fan motor rotation speed anomaly
152
E28
Remote control temperature thermistor anomaly
153
E35
Cooling overload operation
154
E36
Discharge pipe temperature error
155
E37
Outdoor heat exchanger temperature sensor anomaly
156
E38
Outdoor air temperature sensor anomaly
157
E39
Discharge pipe temperature sensor anomaly
158
E40
Service valve (gas side) closing operation
159
E42
Current cut
160
・
161
E47
Inverter over-current error
162
E48
Outdoor fan motor anomaly
163
E51
Power transistor anomaly
164
E57
Insufficient refrigerant amount or detection of service valve closure
165
E58
Current safe stop
166
E59
Compressor startup failure
167
E60
Anomalous compressor rotor lock
168