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Error code reference

Daikin Air Conditioner Error Code E9

Electronic expansion valve coil abnormality (outdoor) - detected by continuity check and superheated degree conditions.

SourceDaikin Air Conditioner - Service Manual: RZR-P, RZQ-P(9) Seriesp. 138

Daikin codesDaikin air conditioner codes
Diagnostic procedure

The full E9 procedure

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MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Turn OFF power and ON again; check if EEV connector X21A or X22A is properly connected to outdoor unit PCB.

SourceDaikin Air Conditioner - Service Manual: RZR-P, RZQ-P(9) Seriesp. 138

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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

2 manuals in the MyPros+ library document this code for Daikin air conditioner.

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