2. Faults
2-1. Power
2-2. Compressor
TROUBLE
D
IAGNOSIS
-8
5-
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
Ω
, 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
Summary of Contents for LRSC21934SW
Page 45: ...2 GR C247 B247 C207 B207 EXPLATION FOR MICOM CIRCUIT 45 ...
Page 54: ...2 GR C247 B247 C207 B207 EXPLATION FOR MICOM CIRCUIT 54 ...
Page 55: ...3 2 Parts list 1 GR P247 L247 P207 L207 EXPLATION FOR MICOM CIRCUIT 55 ...
Page 56: ...EXPLATION FOR MICOM CIRCUIT 56 ...
Page 57: ...2 GR C247 B247 C207 B207 EXPLATION FOR MICOM CIRCUIT 57 ...
Page 58: ...EXPLATION FOR MICOM CIRCUIT 58 ...
Page 59: ...3 3 DISPLAY ASSEMBLY part diagram 1 GR P247 L247 P207 L207 EXPLATION FOR MICOM CIRCUIT 59 ...
Page 60: ...2 GR C247 B247 C207 B207 EXPLATION FOR MICOM CIRCUIT 60 ...
Page 61: ...3 4 DISPLAY circuit diagram 1 GR P247 L247 P207 L207 61 Parts without mark means SMD parts ...
Page 62: ...2 GR C247 B247 C207 B207 62 Parts without mark means SMD parts ...
Page 64: ...EXPLATION FOR MICOM CIRCUIT 64 PCB ASSEMBLY DISPLAY PCB ASSEMBLY MAGIC DISPLAY ...
Page 65: ...2 GR C247 B247 C207 B207 EXPLATION FOR MICOM CIRCUIT 65 ...
Page 66: ...EXPLATION FOR MICOM CIRCUIT 66 PCB ASSEMBLY DISPLAY PCB ASSEMBLY MAGIC DISPLAY ...
Page 73: ...CIRCUIT 73 3854JD1103A ...
Page 74: ...CIRCUIT 74 3854JD1103A ...