Trane Package Unit: 4YCY
Re: Control Board Lockout / Fault Codes
Red Light Status | Description |
Off | No Power or Control Failure |
On | Normal - No Call for Heat |
Slow Flash | Normal - Call for Heat |
2 | Ignition Failure |
3 | Pressure Switch Fault |
4 | High Limit Switch or Roll-Out Open |
5 | Flame Sensed with Gas Valve Off |
6 | Rollout Switch Open |
7 | W2 Received Without W1 |