Mitsubishi Electric SRK100VNPZJX, Technical Manual

Page: 433 / 509

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432
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E16
Indoor fan motor anomaly
6 times flash ON
Keeps flashing Stays OFF
1. Applicable model
5. Troubleshooting
All models
Diagnosis Countermeasure
NO
YES
YES
Does any
foreign material
intervene in rotational area
of fan propeller?
Is DC280V
detected between
~
-
€
of
fan motor connector
CNU?
Is it normalized?
Does the fan
rotate smoothly when turned
by hand?
YES
NO
NO
YES
（
1
）
Note (1)
€
for GND
NO
Power supply reset
Remove foreign material.
Replace the fan motor.
Replace indoor control PCB
Replace fan motor. (If the
error persists after replacing
the fan motor, replace the
indoor control PCB.)
Malfunction by temporary
noise
2. Error detection method
Detected by rotation speed of
indoor fan motor
3. Condition of Error displayed
• When actual rotation speed of
indoor fan motor drops to lower
than 300rpm for 30 seconds
continuously, the compressor
and the indoor fan motor stop.
4. Presumable cause
• Defective indoor control PCB
• Foreign material at rotational
area of fan propeller
• Defective fan motor
• Dust on indoor control PCB
• External noise, surge
Note:
Error code
Remote controller:
Indoor
display
RUN light TIMER light
Green LED Red LED
Outdoor
control PCB
Content
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432
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'12 • PAC-T-174