17 May 26

Symptom: DXG-18, DXH-18, MGC-18 – ERROR CODE U8

Solution: MULTIPLE SOLUTIONS

Cause: MALFUNCTION OF ZERO CROSSING SIGNAL OF INDOOR UNIT

Remarks:

DESCRIPTION:

THE COMPRESSOR, THE OUTDOOR FAN AND INDOOR FAN STOP OPERATION.

REPAIR:

1) CHECK IF THE POWER IS ABNORMAL

2) CHECK IF MAIN BOARD (CONTROL BOARD) OF INDOOR UNIT IS DAMAGED:

SOLUTION 2) REPLACE THE INDOOR UNIT PCB WITH NEW PCB