Troubleshooting Guide
36
Ceiling Cassette Air Conditioner
When cooling does not operate
Trouble 3
Turn on Main Power
Operate "Cooling Mode( )" by setting the desired 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 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 10k
Ω
/ at 25°C).
Check Relay(RY - COMP) for driving compressor.
• When the power(About AC208V-230V) is applied to the connecting wire
terminal support transferred to compressor, PWB Ass'y is normal.
• Check the circuit related to the relay.
Check point
COMP ON
COMP OFF
Below DC 1V
About DC12V
(app)
Between two pin of DC
part in relay for COMP
Содержание LC240CP
Страница 20: ...20 Ceiling Cassette Air Conditioner Wiring Diagrams 1 Indoor Unit LCN240CP Wiring Diagrams ...
Страница 21: ...Service Manual 21 Wiring Diagrams LCU240CP LCU380CP 2 Outdoor Unit ...
Страница 53: ...Electronic Control Device Service Manual 53 Electronic Control Device Ceiling Cassette Type Main P C B ASM ...
Страница 64: ...P No 3828A20911A Printed in Korea ...