Goodman HVAC Error Code 22: How to Fix It

Q: What does Goodman error code 22 mean?

Goodman error code 22 means the low-pressure switch is open, indicating low refrigerant pressure in the AC system. This can be caused by a refrigerant leak, dirty filter, or faulty switch.

Q: Can I bypass the low-pressure switch temporarily?

Bypassing the switch is only recommended for diagnostic purposes to test if the switch is faulty. Do not run the system long-term without a working switch, as it protects the compressor from damage.

Q: How do I reset Goodman error code 22?

After fixing the underlying issue (e.g., replacing filter or switch), turn off the system at the thermostat and breaker for 5-10 minutes, then reset. The error code should clear if the problem is resolved.

Q: Is error code 22 serious?

Yes, it indicates a problem that can damage the compressor if ignored. Immediate diagnosis is recommended.

Q: How much does it cost to fix a low-pressure switch?

The part itself costs $20-$50, but professional installation (including refrigerant check) can range from $150 to $400.

Abstract

Goodman error code 22 indicates that the low-pressure switch on your AC system is open, meaning the refrigerant pressure has dropped too low. This can be caused by a refrigerant leak, a dirty air filter, restricted airflow, or a faulty pressure switch. Follow this guide to diagnose and resolve the issue safely.