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[ IX Troubleshooting ]
- 208 -
HWE0803A GB
1. Error Code
Overload protection
2. Error definition and error detection method
If the output current of "(Iac) >Imax (Arms)" or "THHS > TOL" is continuously detected for 10 minutes or more during inverter
operation.
3. Cause, check method and remedy
Refer to section -7- "Inverter (THMU-A)" under part [4] Troubleshooting Principal Parts for error codes related to the
inverter.(page 293)
4240 (THMU-A)
Model Imax(Arms)
P72 model 35
P96, P120 model 53
Model TOL
P72 model 95°C [203°F]
P96, P120 model 80°C [175°F]
Cause Check method and remedy
(1) Air passage blockage Check that the heat sink cooling air passage is not blocked
(2) Power supply environment Power supply voltage is 188 V or above.
(3) Inverter failure Refer to IX [4] -7-.(page 293)
(4) Current sensor (ACCT) failure Refer to IX [4] -7- (4).
(5) Compressor failure Check that the compressor has not overheated during operation.
-> Check the refrigerant circuit (oil return section).
Refer to IX [4] -7- (2) [2].(page 295)