*AC UNIT IN COOLING/DRY MODE: ALL LOADS STOP OPERATING (EXCEPT THE INDOOR FAN, THIS WILL CONTINUE TO OPERATE).
*AC UNIT IN HEATING MODE: ALL LOADS STOP OPERATION.
REPAIR:
1) MALFUNCTION OF HIGH PRESSURE SWITCH OR THE WIRING IS LOOSE:
SOLUTION 1) CHECK IF THE HIGH PRESSURE SWITCH FUNCTIONS NORMALLY OR CHECK IF THERE ARE SOME WIRES CONNECTED INCORRECTLY
2) MALFUNCTION OF OUTDOOR ELECTRIC BOX:
SOLUTION 2) CHECK IF THERE IS A MALFUNCTION WITH OUTDOOR ELECTRIC BOX
3) LOW FAN SPEED OF OUTDOOR UNIT:
SOLUTION 3) CHECK IF THE FAN SPEED IS TOO LOW
4) POOR AIR RETURN OF INDOOR UNIT OR OUTDOOR UNIT:
SOLUTION 4) CHECK IF THE AIR RETURN OF OUTDOOR AND INDOOR UNIT IS MALFUNCTIONING
5) THE HEAT EXCHANGERS OF INDOOR/OUTDOOR UNIT ARE DIRTY:
SOLUTION 5) CHECK IF THE EVAPORATOR AND CONDENSER ARE DIRTY OR NOT, AND CONFIRM IF THE HEAT EXCHANGE OF EVAPORATOR AND CONDENSER FUNCTIONS WELL OR NOT
6) THE INTERNAL SYSTEM IS BLOCKED:
SOLUTION 6) CHECK IF THE SYSTEM IS BLOCKED (DIRT, ICE OR OIL BLOCKAGE?)
7) SOME AIR IS IN THE SYSTEM:
SOLUTION 7) CHECK IF THERE IS SOME AIR IN THE SYSTEM
8) THE PANEL OF OUTDOOR UNIT IS NOT CLOSED FIRMLY:
SOLUTION 8) CHECK IF THE PANEL OF OUTDOOR UNIT IS FIRMLY CLOSED
9) CHECK IF THERE IS TOO MUCH REFRIGERANT
10) CHECK IF MAIN BOARD OF OUTDOOR UNIT IS DAMAGED