LG THERMA V AHNW16606B0, Руководство по обслуживанию, Страница: 70 / 81

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Heat sink Temp,
High error
Heatsink sensor detected
high temp.(85℃)
1. Part no. : EBR37798101~09
- Check the heatsink sensor
: 10
㏀
/at 25℃(Unplugged)
- Check the outdoor fan is driving rightly
2. Part no. : EBR37798112~21
- Check the soldered condition in the 22,23 pin of
IPM, PFCM
- Check the screw torque of IPM, PFCM
- Check the spreadable condition of thermal
grease on IPM, PFCM
- Check the outdoor fan is driving rightly
Display
code
Title Cause of error Check point & Normal condition
n
Error Diagnosis and Countermeasure Flow Chart
Is it good Screw Torque of
IPM, PFCM ?
No
Yes
Be tighten the screw of IPM, PFCM
Change the Inverter PCB
Is it normal Resistor between
22 and 23 Pin of IPM, PFCM
Is it normal thermal grease of
IPM, PFCM ?
Is it normal IPM, PFCM?
Recheck Power and installation condition
No
Yes
<Check the PFCM>
Check Point
1. Check resistance between No.19 pin and NO.20 pin of PCB PFC module
2. Resistance value should be in 7kΩ ±10%.(at 25°C).