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[ IX Troubleshooting ]
- 218 -
HWE0803A GB
1. Error Code
Heatsink temperature sensor (THHS) fault (Detail code 01)
2. Error definition and error detection method
When a short or an open of THHS is detected just before or during the inverter operation.
3. Cause, check method and remedy
P72 model
P96 and P120 models
Refer to section -7- "Inverter (THMU-A)" under part [4] Troubleshooting Principal Parts for error codes related to the
inverter.(page 293)
1. Error Code
Heatsink temperature sensor (THHS) fault (Detail code 01)
2. Error definition and error detection method
When a short or an open of THHS is detected just before or during the inverter operation.
3. Cause, check method and remedy
Refer to section -7- "Inverter (YHMU-A)" under part [4] Troubleshooting Principal Parts for error codes related to the
inverter.(page 301)
5110 (THMU-A)
Cause Check method and remedy
(1) INV board failure If the problem recurs when the unit is put into operation, replace
the INV board.
Cause Check method and remedy
(1) THHS sensor failure Check the THHS sensor reading on the LED monitor.
Replace the sensor if it reads below - 30°C[ -22°F] or above
150°C[302°F].
(2) Contact failure Check the connector connection (CNTH) on the INV board.
5110 (YHMU-A)
Cause Check method and remedy
(1) INV board failure If the problem recurs when the unit is put into operation, replace
the INV board.