68 Room Air Conditioner
Troubleshooting Guide
■
Precaution in Service or Check
Even after stopping the operation of product, it takes some time to discharge the remaining electricity of the
electrolytic capacitor that was charged. Before starting a checking or repairing job, pull out the plug out of the
outlet and make sure that the lamp on the control board outdoor unit is off.
■
The Diagnosis Procedure
Check the supplied voltage to product (AC 220V/230V ± 30V).
Check the connecting cable between Indoor and Outdoor.
Check the blinking number of operation indicator
(refer to the self-diagnosis function).
Check the self-diagnosis table
• Check the condition of connectors
• The condition of P.C.B pattern.
• Check the condition of connectors.
• The condition of P.C.B pattern.
• The electronic components.
Indoor
Outdoor
The cause of malfunction
EEPROM Error
(EEPROM Check sum Error)
PSC Error
(PSC Fault Error)
Comp Phase Current Error
(Only 180 Driver Comp Control)
The operating LED01M will be blink-
ing once long-term and twice.
The operating LED01M will be blink-
ing once long-term and 3 times.
The operating LED01M will be blink-
ing once long-term and 4 times.
Keep operating state.
Keep operating state.
Keep operating state.
Malfunction indicator
The operating state
Error
Code
12
13
14
