| Red LED Blinks | Meaning |
| 1 | Flame sensor dirty or not properly aligned. |
| 2 | Gas valve not opening properly. |
| 3 | Inducer motor not working properly. |
| 4 | Pressure switch not working properly. |
| 5 | Limit switch open. |
| 6 | Rollout switch open. |
| 7 | Igniter not working properly. |
| 8 | Control board not working properly. |
| Green LED Blinks | Meaning |
| 1 | Rollout limit switch open. |
| 2 | Lost communication with indoor blower motor. |
| 3 | Low-pressure switch open. |
| 4 | Flame sensor out of sequence. |
| 5 | Indoor blower motor unable to start. |
Now you know what the issue is, Let’s Go Find Some Easy-Fix Solutions
