What It Means
Control board detected a compressor motor winding fault.
Bryant Air Conditioner
Bryant Air Conditioner Error Code 45
Troubleshooting guide for the Bryant Air Conditioner system fault 45.
Possible Causes
- Open or shorted compressor motor windings.
- Damaged or shorted compressor wiring.
- Voltage imbalance across compressor terminals.
Not sure which one it is — or if it's none of these? Try ACLogics today.
Disclaimer: This information is for general reference. Error codes can vary by model and production year. Always refer to your machine's specific manual and the information printed on the unit itself.
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Full Diagnosis
Compressor Winding Fault. Compressor winding fault detected.
All Recorded Causes
Test compressor winding resistance and compare to specifications. Inspect compressor wiring for shorts or open circuits. Check for voltage imbalance at compressor terminals. Replace compressor if windings are open or shorted.
Verify Before Replacing Parts
- Confirm the exact Bryant model family and air conditioners context before acting on a generic code description.
- Verify current draw, overload status, and control signal before condemning the compressor or drive, given that test compressor winding resistance and compare to specifications.
- Look for upstream conditions such as airflow or charge issues that may be pushing the compressor into protection, and check inspect compressor wiring for shorts or open circuits.
- After the correction, run the system long enough to confirm the air conditioners fault does not return under normal load.
Still unsure about this fault?
ACLogics walks you through Bryant Air Conditioner diagnostics step-by-step — so you confirm the cause before swapping parts.
