What It Means
Fault detected in cable harness connecting control board to inverter module.
Bryant Air Conditioner
Bryant Air Conditioner Error Code 86
Troubleshooting guide for the Bryant Air Conditioner system fault 86.
Possible Causes
- Loose, disconnected, or corroded cable connectors.
- Damaged wiring harness between board and inverter.
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
Inverter Cable Fault. Inverter cable fault detected.
All Recorded Causes
Inspect inverter cable harness between control board and inverter module for damage, loose connections, or corrosion. Reseat all connectors. Replace cable harness if damaged. Board retries after 15 minutes.
Verify Before Replacing Parts
- Confirm the exact Bryant model family and air conditioners context before acting on a generic code description.
- Confirm board LEDs, wiring polarity, and model compatibility before replacing control boards — this Bryant fault points at inspect inverter cable harness between control board and inverter module for damage, loose….
- Check for intermittent communication faults caused by connectors, moisture, or damaged harnesses, and rule out reseat all connectors.
- 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.
