AC UNIT IN COOLING/DRY MODE: THE COMPRESSOR AND OUTDOOR FAN STOP OPERATING WHILE THE INDOOR FAN CONTINUES TO OPERATE.
REPAIR:
1) POOR AIR RETURN IN INDOOR UNIT:
SOLUTION 1) CHECK IF THERE ARE ANY OBSTRUCTIONS AND MAKE SURE THE AIR RETURN WORKS SMOOTHLY
2) FAN SPEED IS ABNORMAL:
SOLUTION 2) CHECK IF THE RUNNING SPEED OF THE FAN MOTOR IS NORMAL. IF NOT, PLEASE REPLACE THE FAN MOTOR OR PCB
3) THE EVAPORATOR IS DIRTY:
SOLUTION 3) CHECK IF THE EVAPORATOR/FILTER IS DIRTY OR NOT. IF IT IS DIRTY, PLEASE CLEAN IT
4) LEAKAGE OF REFRIGERANT:
SOLUTION 4) REPAIR LEAKAGE AND ADD REFRIGERANT PER NAME PLATE OR INSTRUCTIONS FROM FACTORY
5) THE RESISTANCE OF TUBE SENSOR IS ABNORMAL:
SOLUTION 5) REPLACE A NEW CORRESPONDING TUBE SENSOR
6) MALFUNCTIONING OF INDOOR UNIT CONTROLLER:
SOLUTION 6) REPLACE A NEW CORRESPONDING INDOOR CONTROLLER