Burner controls, ignition and flame safeguards
White-Rodgers 50E47-843 Hot Surface Ignition fault codes
What all 7 White-Rodgers 50E47-843 Hot Surface Ignition fault codes mean, in plain words, with a risk grade for each. These come from the manufacturer's own manual. The fix for each one is in WERCS Diagnose.
Get the fixes · plans from $49/moUpdated November 4, 2026
| Code | What it means | Risk |
|---|---|---|
| OFF | OFF An internal failure has occurred, causing the ignition control to shut down the burner completely. | YELLOW |
| Red 1 Flash | Red 1 Flash The maximum number of ignition retries was exceeded, forcing the burner into a lockout state. | RED |
| Red 2 Flash | Red 2 Flash The maximum number of ignition recycles was exceeded, forcing the burner into a lockout state. | RED |
| Red Solid On | Red Solid On A miswired gas valve or internal error was detected, causing the burner to lock out. | RED |
| Red Rapid Flash | Red Rapid Flash A flame was sensed when none was expected, forcing the control into a lockout state. | RED |
| Green Rapid Flashing | Green Rapid Flashing A weak flame signal is detected, which can cause the burner to drop out unexpectedly. | GREEN |
| Yellow Rapid Flashing | Yellow Rapid Flashing Improper electrical polarity was detected, preventing the ignition control from operating the burner system safely. | YELLOW |
Every code comes from the manufacturer's own manual. Subscribers see which manual and page.