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Service Manual
Troubleshooting Guide
Turn on main power.
While the compressor has been stopped, the compressor does not operate
due to the designed 3 minute delay, which is a protective function anytime the compres-
sor is stopped.
When the compressor is stopped, the Indoor Fan is driven by a low speed.
At this point the fan speed is not controlled by the remote controller.
(When operated in the Sleeping Mode, the fan speed is set to the low speed as designed.)
Caused by the remote controller.
Caused by other parts except
the remote controller
When the mark ( ) is displayed in LCD
screen, replace battery.
Check the contact of CN-DISP 1 connector
When the detect switch (double key) inside the
remote controller door is fault, it is impossible to
operate temperature regulating(▲ / ▼) and wind
speed selecting.
Check DISP PCB Ass'y
-Voltage between CN1 ➀ - ➆ : DC +5V
Check the Display PCB Ass'y • Check receiver ass'y
Product doesn't operate with the remote controller.
Trouble 2