Service Manual 57
Cycle Troubleshooting Guide
4. Compressor/Outdoor Fan are unable to drive.
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 2°F at least.
When in Fan 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 related circuit of R02(12.1K), R04(6.2K), Micom (No.27)
(Indoor unit).
• Check the indoor temperature sensor is disconnected or not(About 10k
Ω
/ at 77°F).
When the temperature around Outdoor PWB Ass'y is above 163°F the com-
pressor is stop and only Outdoor Fan is operating.
Turn off Main Power
• Check the electrical wiring diagram of outdoor side.
• Check the abnormal condition for the component of Compressor/Outdoor
Fan Motor.
Check Relay(RY - COMP) for driving compressor.
• When the power(About AC200V) is applied to the connecting wire terminal
support transferred to compressor, PWB Ass'y is normal.
• Check the circuit related to the relay(Outdoor unit).
Check point
COMP ON
COMP OFF
Between Micom(No.
DC5V
DC0V
5, 6) and GND
Between IC01M, IC02M(No. 9)
Below DC 1V
About DC12V
and IC01M, IC02M(No. 8)
(app)
Содержание ARTCOOL LA180CP
Страница 16: ...16 Room Air Conditioner Wiring Diagram 18K Cooling Only Models Wiring Diagram Indoor Unit Outdoor Unit ...
Страница 65: ...Electronic Control Device TOP VIEW BOTTOM VIEW MAIN PWB ASSY Outdoor Unit ...
Страница 66: ...66 Room Air Conditioner Electronic Control Device TOP VIEW BOTTOM VIEW DISPLAY PWB ASSEMBLY ...
Страница 68: ...68 Room Air Conditioner Schematic Diagram Outdoor Unit ...
Страница 73: ...P No 3828A20065Y Printed in Korea ...