*AC UNIT IN COOLING/DRY MODE: THE COMPRESSOR STOPS OPERATING WHILE THE INDOOR FAN WILL CONTINUE TO OPERATE.
*AC UNIT IN HEATING MODE: THE COMPLETE UNIT STOPS OPERATION.
REPAIR:
1) THE INPUT SUPPLY VOLTAGE IS NOT STABLE:
SOLUTION 1) MEASURE THE VOLTAGE BETWEEN POSITION L AND POSITION N ON THE WIRING BOARD (XT). IF IT’S LOWER THAN 150 VAC, PLEASE TURN ON THE UNIT UNTIL THE POWER VOLTAGE IS INCREASED TO THE NORMAL RANGE
2) DEFECT OF OUTDOOR UNIT CONTROLLER:
SOLUTION 2) IF THE AC INPUT IS NORMAL, PLEASE REPLACE THE OUTDOOR UNIT PCB