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31 Room Air Conditioner
Troubleshooting Guide
NO
NO
NO
NO
YES
YES
YES
Is the IC01G all right?
Is the connection of
CN-DISP all right?
• Exchange the display
PCB Ass'y.
• Exchange IC01G.
• Exchange
Q01G-Q04G.
• Connect connector
to CN-DISP exactly.
Does the
Q01G~Q04G operate normally
on main PCB Ass'y?
Is the voltage of Battery
about over 2.3V?
• Exchange Receiver Ass'y.
Is the connection of
CN-DISP all right?
Is the voltage No.16
of CN-DISP on Main PCB
Ass'y DC 5V?
• Exchange the battery.
• Check the PCB pattern.
• Connect connector to
CN-DISP exactly.
NO
NO
NO
YES
YES
YES
Possible Trouble 6 Remote controller does not operate.
Possible Trouble 7 It displays abnormally on display PCB Ass'y.