Elba R410A Anleitung zur Fehlerbehebung Seite 89

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Troubleshooting Guide
- 93 -
Copyright ©2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
5) Troubleshooting CH21
U-V
V-W
W-U
U-GND
V-GND
W-GND
2M
2M
2M
1.843
1.893
1.812
1.08
1.12
1.09
Terminal 5KD240XBA 5JD420XBB
Resistance() at 20°C
Inverter Comp.Terminal
Resistance() at 20°C
Comp
Copper
pipe
V
U
W
Comp
21
DC PEAK
(IPM Fault)
Instant over current
Over Rated current
Poor insulation of IPM
An instant over current in the U,V,W phase
- Comp lock
- The abnormal connection of U,V,W
Over load condition
- Overcharging of refrigerant
Pipe length.
Outdoor Fan is stop
Poor insulation of compressor
Display
code
Title Cause of error Check point & Normal condition
Check Point
1. Check the wire connection. (U,V,W)
2. Check the load condition. (Refrigerant, Pipe length, ...) Adjust the load condition
3. Check the electricity leakage of the compressor. Normal : Over 2M.
4. Check the resistance of compressor.
5. Check the IPM circuit.(Continue next page)
Seitenansicht 88
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