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critical Frigidaire
Error Code EH0b
Communication malfunction of main control board — the control board is not communicating properly with other components.
? What Causes This
Defective main control board or wiring connection failure.
✓ How to Fix It
- Contact your Authorized Frigidaire Service Center.
- The control board or connections will need to be inspected and repaired by a qualified technician.
Source: page 19 of the official manual
From the manual
This error code appears in:
Frigidaire FHWC054TE1 Window Air Conditioner