Goodman furnaces come highly recommended by furnace specialists in Edmonton. The brand is well-built and reliable. But, as with any furnace, Goodman units can experience issues – especially since cold Alberta winters can take such a toll on these types of appliances.
If you run into problems with your Goodman unit, be sure to look for the fault code. Providing furnace error codes to your furnace repair specialist before they arrive will help them solve the issue faster.
Here are some common Goodman furnace fault codes you may come across.
| Goodman Furnace Fault Code | Meaning | Potential Issue |
| Light ON | No signal from thermostat | Thermostat not properly connected, issue with thermostat setting |
| Light OFF | Control failure | No power, issue with connections |
| 1 flash | Ignition error (retries exceeded) / Flame failure | Faulty or dirty flame sensor, faulty igniter, gas supply interruption, etc. |
| 2 flashes | Pressure switch error (stuck closed) | Short in the pressure switch circuit, faulty pressure switch, draft inducer not working, etc. |
| 3 flashes | Pressure switch error (stuck open) | Blockage in pressure switch hose, pressure switch hose improperly connected, loose wiring, induced draft blower operating when it shouldn’t be, etc. |
| 4 flashes | Open high limit | Dirty filters, wiring issue, blockage in flue, etc. |
| 5 flashes | Flame sensed with gas valve off (i.e. no call for heat) | Leaky gas valve, gas valve stuck open, defective flame sensor, etc. |
| 6 flashes | Open rollout switch | Blocked or cracked heat exchanger, blocked vent, low gas pressure, etc. |
| 7 flashes | Low flame error | Low gas pressure, faulty flame sensor, dirty flame sensor, etc. |
| 8 flashes | Ignitor error | Faulty ignitor, ignitor not properly connected, wiring issues, etc. |
| 9 flashes | Open pressure switch, induced draft blower on | Pressure switch hose cracked, blocked or improperly connected, faulty pressure switch, etc. |
| Continuous flashing | Reversed polarity | Issue with wiring |
