Troubleshooting Guide
Trouble 3 | When cooling does not operate | |
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| Turn on Main Power |
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Operate "Cooling Mode( 
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When in Air Circulation Mode, Compressor/Outdoor Fan is stopped.
Check the sensor for indoor temperature is attached as close as to be effected by the temperature of Heat Exchanger(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 indoor temperature sensor is disconnected or not(About 10kΩ / at 25°C(77°F)).
Check Relay(RY - COMP) for driving compressor.
•When the power(About
•Check the circuit related to the relay.
Check point | COMP ON | COMP OFF | |
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Between two pin of DC | Below DC 1V | About DC12V | |
part in relay for COMP | (app) | ||
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34Ceiling Cassette Air Conditioner