2. Faults
2-1. Power
2-2. Compressor
TROUBLE DIAGNOSIS
-63--
Problems Causes Checks Measures Remarks
No power on - Power cord cut. - Check the voltage with tester. -Replace the components.
outlet. - Faulty connector insertion. - Check visually. -Reconnect the connecting parts.
- Faulty connection between plug - Check visually. - Reconnect the connecting parts.
and adapter.
Fuse blows out. - Short circuit by wrong connection. - Check the fuse with tester - Find and remove the cause of - Replace with rated
- Low voltage products are or visually. problem(ex. short, high voltage, fuse after confirming
connected to high voltage. - Check the input volt are with tester low voltage). its specification.
- Short circuit by insects. (between power cord and products). - Replace with rated fuse.
- Electricity leakage. - Check the resistance of power cord
If fuse blowns out
- High voltage. with testerf (if it is 0, it is shorted). frequently, reconfirm
- Short circuit of components the cause and prevent.
(tracking due to moisture and dust
penetration).
Problems Causes Checks Measures Remarks
Compressor - Faulty PTC. - Check the resistance. - If resistance is infinite, replace it
does not Vlaue:∞is defective. with new one.
operate. - If it is not infinite, it is normal.
- Check other parts.
- Compressor is frozen. - If compressor assembly parts are - During forced operation:
normal(capacitor, PTC, OLP), - Operates: Check other parts.
apply power directly to the - Not operate: Replace the frozen
compressor to force operation. compressor with new one, weld,
evacuate, and recharge refrigerant.
OLP It starts as soon as it is Refer to weld repair procedures.
contacted.
Auxiliary winding
Main winding
Power
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