User Manual

TROUBLESHOOTING
14-24
14.6 CHECKING BETWEEN GAS LEAKAGE AND COMPRESSOR FAULTY
14.6.1 TROUBLESHOOTING PROCEDURE (NO OPERATION, NO HEATING OR NO COOLING)
Connect U,V,W phase leads to the
power module again and operate the
air conditioner
Is the self diagnosis
lamp mode as shown
on the right?
Stop to operate and check
the gas pressure in
balancing mode
Gas leaks. Repair and
seal refrigerant
The compressor is defective. Replace it and
seal refrigerant.
If the compressor checker for an inverter type
air conditioner is available, re-check using it)
Yes
• Check the system
power module
Normal
(4~10kg/cm
2
G)
(0.39~0.98 MPaG)
Gas leaking
(less than 4kg/cm
2
G)
(less than 0.39MPaG)
When the self diagnosis
lamp lights in the same
condition as above
Perform final check operation
Compressor
Approx 10
secs.
Blinks
8 times
Gas
leakage
Compressor
Possible
faulty part
Within
30 secs
Approx. 10 secs
Time until the
lamp lights
LD301
Blinks
6 times
Blinks
5 times
Blinks
4 times
Blinks
3 times
Blinks
2 times
Self diagnosis
lamp