Troubleshooting Guide

Troubleshooting 27

7.7 EL 0C (Refrigerant Leakage Detection diagnosis and solution)

Description: Deﬁne the evaporator coil temperature T2 of the compressor just starts running as Tcool.

In the beginning 5 minutes after the compressor starts up, if T2< Tcool-1°C(1.8°F) does not keep continuous 4 seconds

and compressor running frequency higher than 50Hz does not keep for 3 minutes, and this situation happens 3 times,

the LED displays the failure code and AC turns off.

Recommended parts to prepare:

• T2 sensor

• Indoor PCB

• Additional refrigerant

Troubleshooting and repair:

Power off, then restart the unit 2 minutes later.

Are any leakages

present?

Check System for blockages and

clear blockages if present.

Does a problem remain?

Put your hands in front of the

indoor air outlet.

YES

Is there cool

air blowing out from

indoor air outlet?

Is it securely

attached?

Replace the

indoor PCB

YES

Check the T2 sensor.

YES

Check system for leakages.

Repair the leakage and

recharge the refrigerant.

YES