Mitsubishi Electric PUHY-HP144TSHMU-A Service Handbook page 156

[ IX Troubleshooting ]
1. Error Code
5301
ACCT sensor circuit fault (Detail code 117)
2. Error definition and error detection method
When an error value is detected with the ACCT detection circuit just before the inverter starts
3. Cause, check method and remedy
Cause
(1) INV board failure
(2) Compressor failure
Refer to section - 6 -"Inverter" under part [4] "Trouble shootiong principal parts" for error codes related to the
inverter.(page 196)
1. Error Code
5301
DCCT sensor circuit fault (Detail code118)
2. Error definition and error detection method
When an error value is detected with the DCCT detection circuit just before the inverter starts
3. Cause, check method and remedy
Cause
(1) Contact failure
(2) INV board failure
(3) DCCT sensor failure
(4) Compressor failure
(5) Inverter failure
Refer to section -6- "Inverter" under part [4] Troubleshooting Principal Parts for error codes related to the inverter.(page 196)
HWE0716A
Check method and remedy
Refer to 9 [4]-6-(2) [1].(page 198)
Refer to 9 [4]-6-(2) [2].(page 198)
Check method and remedy
Check for good contact of the INV board connector CNCT and the connec-
tor on the DCCT side.
Refer to 9 [4]-6-(2) [1].(page 198)
Replace the DCCT sensor.
Refer to 9 [4]-6-(2) [2].(page 198)
Refer to 9 [4]-6-.(page 196)
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