25- 25 -
HWE10170 GB
1. Error Code
Short-circuited IPM/Ground fault (Indoor unit)
2. Error definition and error detection method
When IPM/IGBT short damage or grounding on the load side is detected just before starting the inverter.
3. Cause, check method and remedy
Refer to section [8] Troubleshooting, item 3. DC fan motor (fan motor/INV board) for error codes related to the inverter.
(page 47)
1. Error Code
Overcurrent error due to short-circuited motor (Indoor unit)
2. Error definition and error detection method
When a short is detected on the load side just before starting the inverter operation.
3. Cause, Check method and remedy
Refer to section [8] Troubleshooting, item 3. DC fan motor (fan motor/INV board) for error codes related to the inverter.
(page 47)
4255
Cause Check method and remedy
(1) Ground fault of the fan motor Refer to [8] 3.2.[4].(page 49)
(2) Inverter failure 1) Refer to [8] 3.2.[1].(page 48)
2) Refer to [8] 3.2.[2].(page 48)
4255
Cause Check method and remedy
(1) Short-circuited fan motor coil or inverter failure 1) Refer to [8] 3.2.[1].(page 48)
2) Refer to [8] 3.2.[2].(page 48)
3) Refer to [8] 3.2.[3].(page 49)
(2) Output wiring Check for a short circuit
HWE10170.book 25 ページ ２０１１年７月１９日 火曜日 午後２時５７分
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