37MUHA Fault Codes EH 00, EH 0A, EC 51 – EEPROM Malfunction
The indoor or outdoor PCB main chip does not receive feedback from the EEPROM chip.
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EC 51
37MGRA EH 00/ EH 0A / EC 51 (EEPROM Malfunction Error Diagnosis and Solution)
Troubleshooting workflow for EH 00, EH 0A, EC 51.
37MGRA EH 00/ EH 0A / EC 51 (EEPROM Malfunction Error Diagnosis and Solution) Read More »