Mitsubishi Electric SRK100VNPZJX, Technical Manual

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394
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'12 • PAC-T-174
E41
1. Applicable model
5. Troubleshooting
Models FDC100-140 Diagnosis Countermeasure
NO
Is DC15V detected
between
②
and
③
on
CNI3?
• Single phase models (FDC100-140VN)
• 3-phase models (FDC100-140VS)
E41
⇒
Replace inverter PCB.
⑴ ⑵
NO
YES
Is DC15V
detected after disconnecting
outdoor fan motor?
⑴
YES
Note(1) Under anomalous conditions,
ޓޓ
the voltage becomes less than DC14V.
Note(2) How to check the voltage between
②
and
③
of CNI3?
ޓޓޓ
⇒
See E51
Replace inverter PCB
If not solved, replace
Noise filter PCB as well
Replace outdoor fan motor
Replace outdoor control
PCB
If not solved, replace
inverter PCB as well
2. Error detection method
When less than DC14V of
the output voltage is detected
between
②
and
③
on CNI3,
E41 is displayed.
(See "Note" mentioned below)
3. Condition of Error displayed
Seme as above.
4. Presumable cause
• Inverter PCB anomaly
• Outdoor fan motor anomaly
• Outdoor control PCB
anomaly
• Noise filter PCB anomaly
Note:
The "Single phase models" of inverter PAC have no function to output the signal for the power transistor overheat. However
since the power source for the power transistor and the outdoor fan motor is in the same line, when the anomaly of the
outdoor fan motor occurs, E41 is displayed.
Error code
Remote controller:
LED Green Red
Outdoor control PCB
Outdoor inverter
PCB
1 time flash Keeps flashing
Indoor control PCB Stays OFF Keeps flashing
Content
6 times flash
Yellow LED
Power transistor overheat(1/2)
(Models FDC100-140)