Armstrong Error Code | What this means |
---|---|
LED is on and not flashing | The furnace is operating normally |
Single LED flash | Flame continues to burn when the gas is off |
Two LED flashes | Problem with the pressure switch |
Three LED flashes | Problem with the pressure switch |
Four LED flashes | Problem with the high limit switch |
Five LED flashes | Problem with the rollout switch |
Six LED flashes | Problem with the pressure switch |
Seven LED flashes | Problem with the ignitor |
Eight LED flashes | The flame is dropping |
Nine LED flashes | Problem with the voltage |