Goodman Error Code 1: System Lockout
Warning: Your Goodman HVAC system has encountered a system lockout, which requires professional repair.
How to Fix Goodman Code 1
- Check your air filter and replace it if it's dirty.
- Ensure that your HVAC system is receiving the correct voltage (240V for most Goodman units).
- If the issue persists, contact a professional HVAC technician.
How to Reset Goodman Code 1
- Turn off the furnace power switch, usually located on or near the unit.
- Turn off the circuit breaker for the furnace. Wait 30 seconds.
- Restore power at the breaker and flip the furnace switch back on.
- Set the thermostat to call for heat. If the error code returns after 2-3 ignition attempts, the fault requires repair.
What does 1 mean?
Goodman's error code 1, or system lockout, indicates that your HVAC system has encountered an issue that it can't resolve on its own. This could be due to a variety of reasons, but it's important to note that this error won't cause immediate damage to your system or home. However, it's crucial to address this issue promptly to prevent further complications and ensure your system's longevity.
Affected Models
Recall Notices
Goodman/Daikin Evaporator Coil Drain Pans Recalled Due to Fire Hazard
22-014
Drain pans can overheat, melt, and deform, posing a fire hazard. Recall expanded January 2024.
Replacement Parts
| Part | OEM Number | Est. Cost |
|---|---|---|
| Control Board | C220003000 | — |
Related Codes on Same Models
| Code | Description | Severity |
|---|---|---|
| STEADY-ON | Normal Operation | Info |
| 2 | Pressure Switch Stuck Closed | Warning |
| 3 | Pressure Switch Stuck Open | Warning |
| 4 | Open High Limit Switch | Warning |
| 5 | Flame Sensed With Gas Valve Off | Warning |
| 6 | Open Rollout Switch | Warning |
| 7 | Low Flame Signal | Warning |
| 8 | Ignitor Error | Warning |
| CONTINUOUS | Reversed Polarity | Warning |
| F01 | Goodman Code F01 - Ignition Lockout | Critical |