-

 35 

-

Current cut

[compressor lock]

YES

NO

¡

Check compressor wiring visually.

¡

Check insulation resistance. (1 M

Ω

 or over)

¡

Check coil wire resistance. (Few 

Ω

)

Is there any shortcircuit?

Inspect compressor.

Secure space for suction
and blow out.

If check results are normal,
compressor is locked.

Compressor overheat

[Gas shortage, defective discharge
pipe thermistor]

Is Discharge pipe thermistor
resistance value good?

Is sufficient quantity of refrigerant
circulated?

Defective inverter

YES

YES

NO

NO

YES

NO

Gas shortage

Connector connection check, resistance
value check, replacement of Discharge pipe
thermistor

Does trouble persist after
charging gas?

Clogged capillary tube,
etc.

Indoor fan motor error

[Defective fan motor,
defective PCB]

YES

YES

NO

NO

Is connector connection good?

Is voltage applied to fan motor?

Defective fan motor

Correct connector
connection.

Defective indoor unit
PCB

Outdoor unit abnormal

[Compressor faulty, compressor
wiring disconnected.]

Overload operation?

Is the refrigerant level proper?

Is the wiring to the compressor
connected securely?

Check the compressor.
(Disconnection of coil windings)

YES

YES

YES

NO

Short circuit, Check if the heat
exchanger is dirty, stopped up, etc.

Adjust the level to the proper level.

Connect it securely.

NO

NO

YES

NO

Service valve opened.

Is the service valve open?

Опубликовано TopClimat