Error code reference

Mitsubishi Air Conditioner Error Code EV

24V external power supply operation - flickers when main circuit power is off and 24V external power supply is being input.

SourceMitsubishi Packaged Rooftop Air Conditioner - Service Manual: Precedent eFlexp. 99

Mitsubishi codes Mitsubishi air conditioner codes

Diagnostic procedure

The full EV procedure

Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.

MyPros+ · DiagnosticsStep 1 preview

First diagnostic step

Turn ON the power supply (main circuit) of the inverter to clear indication.

SourceMitsubishi Packaged Rooftop Air Conditioner - Service Manual: Precedent eFlexp. 99

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More steps, wiring diagram references, and verified part numbers

Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.

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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 EV procedure

Where this code is documented

Models covered by the manuals that document this code

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