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OVERALL CHECKING
• Ensure that :-
1) The unit has been mounted solidly and rigid in position.
2) Piping and connections are leak proof after charging.
3) Proper wiring has been installed.
• Drainage check – pour some water into the main drain pipe from the flexible drain hose.
• Test run
1) Conduct a test run after water drainage test and gas leakage test.
2) Check the following items :-
a. Is the electric plug firmly inserted into the socket ?
b. Is there any abnormal sound from the unit ?
c. Is there any abnormal vibration on the unit itself or piping ?
d. Is the drainage of water smooth ?
• Confirm that :
1) Condenser fan is running, with warm air blowing off the condensing unit.
2) Evaporator blower is running and discharge cool air.
3) The remote control incorporate a 3 minute delay in the circuit. Thus, it requires about 3 minutes before the outdoor
condensing unit can start up.
LED
Faulty Indication Action
POWER TIMER SLEEP/HEAT Other LEDs
Blink 1 time - - Blink Fan Room Sensor Open or Short
Blink 2 times - - Blink Dry & Fan Indoor Coil Sensor Open
Blink 3 times - - Blink Dry Outdoor Coil Sensor Open
Compressor Overload /
- Blink 1 time - Blink Cool Indoor Coil Sensor Short / Call Your Dealer
Outdoor Coil Sensor Short
- Blink 3 times - Blink Cool & Dry Gas Leak
- Blink 2 times - Blink Cool & Fan Water Pump Fault
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