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TROUBLESHOOTING
4-2. Troubleshooting by symptom
4-2-1. When there is no power at Inverter PCB (F/R Room Inverter)
The voltage between
CN101 #3 Iis about AC 115V
Is the fuse on the
Inverter PCB blown.?
Is DC 300V applied
between both ends of BD101?
Does PANEL PCB work
normal?
Is there any PCB soldering
short or breakage?
Check the wire connection and connector
Replace Fuse AC 250V 6.3A
Replace the Inverter PCB
1) Check the wire harness
2) Replace PANEL PCB
Replace the Inverter PCB
Normal
No.
No.
No.
No.
No.
Yes
Yes
Yes
Yes
Yes
Start
There is Over AC115V at the
Inverter PCB Power Circuit.
So, be cautious when
repairing the unit or
measuring values.
Caution
- To check the Inverter PCB,
refer to the Operation and
'Refer' sections in this manual
CN102
CN101
AC IN
C111
C108
CN103
- Check MAIN PCB wire
- Check Panel PBA connection at the upper
Hinge Cabi-Door
- Check the Door panel PCB connections
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Summary of Contents for RF32FMQDBSR/AA, RF32FMQDBSR/AA
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