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Error code reference
Carrier Air Conditioner Error Code 6
Missing Phase: One phase of power to the compressor is missing.
SourceCarrier 569J Air Conditioner - Service Manual: Installation & Start-UpTable 12, page 40
Diagnostic procedure
The full 6 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
1
First diagnostic step
Check if compressor fuse is open on one phase, broken wire or connector on one phase, compressor motor winding is damaged, or utility supply has dropped one phase.
SourceCarrier 569J Air Conditioner - Service Manual: Installation & Start-UpTable 12, page 40
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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