Hyundai Split Type Inverter AC Error Code
E4-When the indoor fan speed is lower than 200 rpm, “E4” will display on the panel. -When “E4” display on the panel, you should check if there are something block the indoor fan or the fan motor’s terminals connect with PCB steadily. Otherwise you should change a new fan motor.
TROUBLE SUSPENSION TABLE
PROBABLE CAUSE-CORRECTIVE ACTION
The RUN indicator (green)does not light up
The power source voltage is lower than 198V-Repair the power supply
No voltage-Repair general wiring
Correct voltage-Replace control P.C.B or display P.C.B
The remote controller batteries are used up-Reload new batteries
The indoor fan does not function correctly
No voltage between indoor fan motor terminals-Replace the control P.C.B
Indoor fan motor is broken-Replace indoor fan motor
The outdoor fan does not function correctly
No voltage between outdoor fan motor terminals on the indoor power P.C.B-Replace the control P.C.B
No voltage between outdoor fan motor terminals on the outdoor unit-Check and repair electrical wiring between indoor and outdoor units
Outdoor fan is blocked-Remove obstructions
Outdoor fan motor is broken-Replace outdoor fan motor
Outdoor fan motor capacitor is broken-Replace capacitor
The compressor does not start up
No voltage between compressor terminals on the indoor unit-Repair control P.C.B
Low voltage between compressor terminals on the indoor unit-Repair control P.C.B
No voltage between compressor terminals on the outdoor unit-Repair electrical wiring between indoor and outdoor units
The running capacitor is broken-Replace running capacitor
OLP of compressor trips-Wait for one hour or so
Compressor winding shorted or broken-Replace compressor
