Mitsubishi Heavy Industries SRK100VNXWZRF Service Manual page 114

Indoor display
Error code
Outdoor unit
Remote control:
E41
Outdoor unit
inverter PCB
1. Applicable model
Model FDC200VSA-W
2. Error detection method
When anomalously high
temperature is detected by
power transistor
3. Condition of error displayed
Anomalously high temperature
of power transistor is detected 5
times within 60 minutes.
4. Presumable cause
• Inverter PCB anomaly
• Outdoor fan motor anomaly
• Improperly fixing of power
transistor to radiator fin
• Inadequate installation space
of outdoor unit
• Outdoor unit control PCB
anomaly
• Power transistor module
anomaly
Note:
RUN light
–
Green LED
control PCB
Keeps flashing
Yellow LED
8-time flash
5. Troubleshooting
Is it possible to
reset the error for 10 minutes after
compressor stopped?
installation space of outdoor
Is the outdoor fan running?
of power transistor to radiator fin OK?
・ Fixed screw
・ Application of radiating
silicone
Does the error recur?
TIMER light
Content
–
Red LED
Power transistor overheat
1-time flash
(Model FDC200VSA-W only)
Diagnosis
NO
Replace inverter PCB.
NO
YES
Can error be reset?
Is the
NO
unit enough?
YES
Correct it.
NO
Replace the outdoor fan motor or the
YES
outdoor unit control PCB.
Is the fixing
YES
113
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'22 • PAC-SM-422
Countermeasure
OK
YES
Replace power transistor.
NO
Fix properly.
NO
Defective inverter PCB➞
YES
Replace.
OK
NO