160
TROUBLESHOOTING
Error code
Contents Error detection / Judgment
RC
display
Outdoor control PCB
Code Sub code
E7 86 10 All fan motor starting failure or
speed failure
No fan motor can operate due to starting failure or abnormal
speed. (Refer to the following for details.)
11 Fan motor 1 starting failure The fan motor speed is lower than 50 rpm (min
-1
) after 10 sec-
onds from fan motor starting direction. (Engine starting is pro-
hibited while no fan motor's normal starting is confirmed when
there is fan motor voltage direction at engine starting.)
12 Fan motor 2 starting failure
21 Fan motor 1 speed failure When the fan motor is operating:
(No error detection for 10 seconds from running direction.)
1. Speed of lower than 50 rpm (min
-1
) is detected for 10 sec-
onds. OR
2. Speed of 1,200 rpm (min
-1
) or more is detected for 10 sec-
onds.
22 Fan motor 2 speed failure
FE 81 0 Abnormal engine oil pressure Engine oil pressure switch ON is detected for 3 seconds when
10 seconds or longer have passed after engine starting.
10 Engine oil leakage Engine oil level switch OFF is detected for 5 seconds.
FF 58 0 Inadequate refrigerant oil Inadequate refrigerant oil of the operating outdoor unit is detect-
ed twice within 30 minutes.
FJ 47 0 Abnormal engine exhaust air
temperature
The engine exhaust air temperature sensor detects 1,292
℉
(700℃) or higher during compressor operation when deodorant
kit is installed.
F3 91 0 Excessive compressor
discharge pipe temperature
The compressor discharge pipe temperature sensor for the
engaged compressor detects 248
℉(120 ℃) or higher for 3 sec-
onds (the higher temperature is selected when 2 compressors
are connected).
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