Goodman inverter condenser shows F3 and unit cycles off on high pressure
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.
Possible Causes
How to Fix / Troubleshooting
Safety first: Turn off power at the disconnect before cleaning or working near the fan. Do not attempt to vent refrigerant.
Steps to check:
- 1. Clean condenser coil: Remove debris from the Goodman outdoor unit. Rinse the coil from inside out with low-pressure water to remove dirt and cottonwood.
- 2. Verify fan operation: Restore power and call for cooling. Confirm the fan starts immediately and runs at full speed. If it does not, suspect a fan motor or capacitor issue.
- 3. Check airflow clearance: Ensure adequate clearance around and above the unit. Remove obstructions that could recirculate hot air.
When to call a professional: Persistent F3 indicates a refrigerant or mechanical issue that requires gauges and professional diagnosis. Overcharge, restrictions, or a failing compressor must be addressed by a licensed technician.
Repair Difficulty
Required Part
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