LG LRSC26980TT Service Manual - Page 73

Power, Compressor

Get LG LRSC26980TT PDF manuals and user guides View all LG LRSC26980TT manuals
Add to My Manuals
Save this manual to your list of manuals

Page 73 highlights

TROUBLE DIAGNOSIS - 73 - 11. Power Problems Causes Checks Measures No power on outlet. - Power cord cut. - Faulty connector insertion. - Faulty connection between plug and adapter. - Check the voltage with a tester. - Check visually. - Check visually. -Replace the components. -Reconnect the connecting parts. -Reconnect the connecting parts. Fuse blows out. - Short circuit by wrong connection. - Low voltage products are connected to high voltage. - Short circuit by insects. - Electricity leakage. - High voltage. - Short circuit of components (tracking due to moisture and dust penetration). - Check the fuse with tester - Find and remove the cause of or visually. problem (ex. short, high voltage, - Check the input voltage with a tester. low voltage). (between power cord and products). - Replace with rated fuse. - Check the resistance of power cord with tester (if it is 0Ω, it is shorted). Remarks - Replace with rated fuse after confirming its specification. I If fuse blows out frequently, confirm the cause and prevent. 12. Compressor Problems Causes Compressor does not operate. - Faulty PTC. - Compressor is frozen. Checks Measures - Check the resistance. Vlaue:∞ is defective. - If compressor assembly parts are normal (capacitor, PTC, OLP), apply power directly to the compressor to force operation. Auxiliary winding OLP Main winding Power It starts as soon as it is contacted. - If resistance is infinite, replace it with new one. - If it is not infinite, it is normal. - Check other parts. - During forced operation: - Operates: Check other parts. - Not operate: Replace the frozen compressor with new one, weld, evacuate, and recharge refrigerant. • Refer to weld repair procedures. Remarks

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
  • 113
  • 114
  • 115
  • 116
  • 117
  • 118
  • 119
  • 120
  • 121
  • 122
  • 123
  • 124
  • 125
  • 126
  • 127
  • 128
  • 129
  • 130
  • 131
11. Power
12.
Compressor
TROUBLE DIAGNOSIS
- 73 -
Problems
Causes
Checks
Measures
Remarks
No power on
- Power cord cut.
- Check the voltage with a 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 voltage with a 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 blows out
- High voltage.
with tester (if it is 0
Ω
, it is shorted).
frequently, confirm
- 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