Troubleshooting Guide
Trouble 3 | The Compressor/Outdoor Fan are unable to drive. |
Turn on the main power.
Operate Cooling Mode by setting the disired temperature of the remote controller is less than one of the Indoor temperature by 1°C at least.
When in air circulation mode, compressor/outdoor fan is stopped.
Check the sensor for Indoor temperature is attatched as close as to be effected by the themperature of Heat Exchange (EVA.)
When the sensor circuit for Indoor temperature and connector are in bad connection or are not engaged, Compressor/Outdoor fan is stopped.
•Check the related circuit of R02H(12.1K), R01H(6.2K), R04H(1K), R03H(1K), C01H(102), C02H(102), Micom(pin No. 
, 
).
•Check the Indoor temperature sensor is disconnected or not (Resistance is about 10K at 25°C).
Check the
•Check the voltage between brown and blue cable of terminal to connect the Outdoor (About AC220V / 240V).
•Check the related circuit of relay in Outdoor PCB Ass'y.
Check Point | Comp. ON | Comp. OFF | |
Between Micom(No. | 46 ) and | DC 5V | DC 0V |
GND |
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Between IC01M(No. | 15 ) and | DC 1V↓ | DC 12V |
GND |
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Turn off main power.
Check the electrical wiring diagram of Outdoor side.
Check the open or short of connecting wires between Indoor and Outdoor.
Service Manual 71
