What do the error codes mean?
There are three error codes: EH00 indicates internal memory chip failure, EH60 indicates the indoor ambient temperature sensor is open/short circuited, and EH0b indicates a communication malfunction of the main control board. When any of these error codes appear, you should contact your Authorized Frigidaire Service Center.
From the official Frigidaire FHWC054TE1 Window Air Conditioner manual, page 19
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