Error code reference

Mitsubishi Air Conditioner Error Code E.SER

Communication fault (inverter) - communication error occurred consecutively beyond permissible retries during RS-485 communication.

SourceMitsubishi Packaged Rooftop Air Conditioner - Service Manual: Precedent eFlexp. 110

Mitsubishi codes Mitsubishi air conditioner codes

Diagnostic procedure

The full E.SER procedure

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MyPros+ · DiagnosticsStep 1 preview

First diagnostic step

Check the RS-485 terminal wiring.

SourceMitsubishi Packaged Rooftop Air Conditioner - Service Manual: Precedent eFlexp. 110

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Where this code is documented

1 manual in the MyPros+ library documents this code for Mitsubishi air conditioner.

Models covered by the manuals that document this code

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The full E.SER procedure

Where this code is documented

Models covered by the manuals that document this code

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