Mitsubishi PWFY-P36NMU-E-BU Service Handbook page 56

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1. Error Code
4250
IPM error (Detail code 101)
2. Error definition and error detection method
Overcurrent is detected while power module error detection signal is output.
3. Cause, check method and remedy
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(1)
Check the inverter output wiring
for proper connection.
(2)
Compressor failure
Refer to section - 5 - "Inverter" under part [3] "Trouble shooting principal parts" for error codes related to the
inverter.(page 69)
1. Error Code
4250
ACCT overcurrent (H/W detection) (Detail code 102)
2. Error definition and error detection method
Overcurrent 34.5Apeak or 16Arm and above is detected
3. Cause, check method and remedy
(
) 1
Check the inverter output wiring for proper connection.
(
) 2
Compressor failure
Refer to section - 5 - "Inverter" under part [3] "Trouble shooting principal parts" for error codes related to the
inverter.(page 69)
e
Check the fan wiring for breakage and damage.
Check that the wiring is connected with correct polarity.
Check the compressor for earth fault and short circuit.
Replace the INV board if no problems are found with the above
items.
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Check the fan wiring for breakage and damage.
Check that the wiring is connected with correct
polarity.
Check the compressor for earth fault and
short circuit.
Replace the INV board if no problems are
found with the above items.
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