33
Bryant Compressor Overheating / Discharge Temperature Fault

Outdoor Bryant condenser attempts to start but shuts down quickly; control board flashes code 33 indicating discharge line temperature or compressor over-temperature fault.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Dirty condenser coil, Failing condenser fan motor, Overcharged refrigerant, Restricted condenser airflow (unit too close to wall or shrubs)

How to Fix / Troubleshooting

Safety first: Shut off power at the outdoor disconnect and indoor breaker. Allow the unit to cool for at least 30 minutes before touching the compressor area.

Steps to reduce compressor temperature:

  • 1. Clear condenser airflow: Ensure at least 24 inches of clearance around the Bryant condenser. Trim shrubs, remove obstructions, and clear debris from the coil fins.
  • 2. Clean the condenser coil: Remove the top grille (after disconnecting power and carefully supporting the fan assembly). Use a soft brush to remove surface dirt, then rinse the coil from inside out with a garden hose. Avoid bending fins.
  • 3. Check condenser fan operation: Restore power and call for cooling. Confirm the fan starts immediately and runs at full speed. If it is slow, noisy, or stops intermittently, shut power off and inspect the fan motor and dual run capacitor for swelling or burnt terminals.
  • 4. Inspect discharge temperature sensor (if equipped): Some Bryant models use a thermistor on the discharge line. With power off, verify the sensor is firmly attached and wiring is intact. A loose sensor can falsely report high temperature.
  • 5. Reset and test: After cleaning and verifying fan operation, cycle power to clear the fault and test again. If code 33 returns, a refrigerant-side issue (overcharge, restriction, or non-condensables) or internal compressor problem is likely.

Professional service: If the compressor is extremely hot, trips breakers, or code 33 recurs, contact a licensed HVAC technician. Running an overheated compressor can cause permanent failure.

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Repair Difficulty

Hard 4/5

Required Part

Condenser Fan Motor
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