All Error Codes
High Medium Low
| Code | Description | Severity | Quick Action |
|---|---|---|---|
| 1R | Flame Without Call | High | Shut down & call tech |
| 4R | High Limit / Rollout | High | Shut down & call tech |
| 5R | Ignition Lockout | High | Shut down & call tech |
| 6R | Gas Valve Relay Fault | High | Check gas supply |
| 7R | Low Flame Signal | High | Shut down & call tech |
| 8R | Reversed Polarity | High | Shut down & call tech |
| 10R | Communication Error | Medium | Check wiring |
| 2R | Pressure Switch Stuck Closed | Medium | Call tech support |
| 3R | Pressure Switch Open | Medium | Call tech support |
| 9R | Blower Motor Fault | Medium | Call tech support |