Mitsubishi Electric PURY-EP200 Service Handbook page 216

[ IX Troubleshooting ]
1. Error Code
4240
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.
Model
P250
EP200
P300-P400
EP250-EP300
3. Cause, check method and remedy
(1) Air passage blockage
(2) Power supply environment
(3) Inverter failure
(4) Compressor failure
Refer to section -7- "Inverter" under part [4] Troubleshooting Principal Parts for error codes related to the inverter.(page 283)
HWE0713A
Imax(Arms)
19
27
Cause Check method and remedy
Check that the heat sink cooling air passage is not blocked
Power supply voltage is 188 V or above.
Refer to IX [4] -7-.(page 283)
Check that the compressor has not overheated during operation.
-> Check the refrigerant circuit (oil return section).
Refer to IX [4] -7- (2) [2].(page 285)
- 207 - GB