Error code reference

Daikin Air Conditioner Error Code UJ

Transmission error between outdoor unit and branch provider (BP) unit - data not received correctly for 10 minutes.

SourceDaikin Air Conditioner - Service Manual: RMXS-L Series Multi-Splitp. 224

Daikin codes Daikin air conditioner codes

Diagnostic procedure

The full UJ 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 power off, check transmission wire between outdoor unit and BP unit.

SourceDaikin Air Conditioner - Service Manual: RMXS-L Series Multi-Splitp. 224

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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 Daikin air conditioner.

Models covered by the manuals that document this code

More models are covered than are listed here.

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The full UJ procedure

Where this code is documented

Models covered by the manuals that document this code

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