Lennox furnace error code 291
Lennox furnace error code 291 is a non-starting condition of the Lennox furnace. This error code happens when the gas pressure in the furnace has been cut off while operating.
The thermostat and blower are on the left side of the unit. If you have this issue, check to ensure that the thermostat and blower are both working properly. If any of these are not functioning properly, your furnace will need to be serviced by a professional technician.
Lennox furnace error code 291 indicates that a sensor is stuck on or removed, and the furnace should be serviced.
This article discusses what you can do if your furnace is stuck on or you have removed a sensor.
Lennox furnace error code 291 is one of the most common errors that can happen with any Lennox furnace. Error code 291 indicates an error in the fan motor of your Lennox furnace.
In this case, it is possible that the fan blades need to be replaced. Any other unusual behaviour might also indicate a failing fan motor, but it would require further testing.
The following could also cause Lennox furnace error code 291:
– Defects in wiring.
– Improperly-sized condensate drain pan.
– Faulty electrical circuit breakers or fuses.