[7-6 Error Code Definitions and Solutions: Codes [4000 - 4999] ]
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HWE12050 GB
7-6-12 Error Code [4240]
1. Error code definition
Overload protection
2. Error definition and error detection method
If the output current of "(Iac) >Imax (Arms)" or "THHS > 100°C [212°F] " is continuously detected for 10 minutes or more
during inverter operation.
3. Cause, check method and remedy
For inverter-related error codes, refer to the following page(s). [8-9 Troubleshooting Inverter Problems](page 234)
Model Imax(Arms)
EP200, EP250 models 15
EP300 - EP450 models 27
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 342 V or above.
(3) Inverter failure Refer to the following page(s). [8-9 Troubleshooting Inverter Problems](page
234)
(4) Compressor failure Check that the compressor has not overheated during operation.
Check the refrigerant circuit (oil return section).
Refer to the following page(s). [8-9-3 Checking the Compressor for Ground Fault
and Coil Resistance Problems](page 236)
(5) The model selection switches
(SW5-3 - 5-8) on the outdoor
unit are set incorrectly.
Check the setting for the model selection switch on the outdoor unit (Dipswitches
SW5-3 - 5-8 on the outdoor unit control board).
For switch settings, refer to the following page(s). [7-9-2 Error Code [7101]](page
197)
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