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1. Error indicator of air conditioner
1) Indoor : Operating LED / Outdoor : LED01M(Red) on the outdoor PCB
2) 2 more errors occur at same time
- Air conditioner Off condition : Display the error code of product off cause
- Air conditioner On condition : Display the prior Error Code
2. Cancellation of Error indicator
1) Error Code 1, 2, 3, 4, 10 : Error indicator canceled when cause of error recovered
2) Error Code 5, 8, 9 : Keep displaying Error indicator by restarting air conditioner,
3) Error Code 6, 7 : Error indicator canceled when power reset (Power Cord Off & On)
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 condition of connectors
• The condition of P.C.B pattern.
although cause of error recovered
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
Indoor
Outdoor
• Check the condition of connectors.
• The condition of P.C.B pattern.
• The electronic components.
Troubleshooting Guide
Service Manual 57
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