Getting error code 229 on your Lennox® furnace?
This means your furnace is ignited at high speed because its low pressure switch didn’t close.
It’s best to have a pro like one from Roy Inch & Sons Service Experts Heating & Air Conditioning in London finish repairing or replacing this part. Our technicians are NATE certified, which means they’re ready to fix a furnace error like this one.
We want you to be fully content with our furnace repair in London. That’s why we back all of our work with a one-year 100% Satisfaction Guarantee.*
How a Low-Fire Pressure Switch Works
Two-stage furnaces have various pressure switches to help the system to run at different speeds—and use less energy. These switches also guarantee your furnace runs safely and vents excess gases from the heat exchanger.
What Happens When a Low-Fire Pressure Switch Doesn’t Work
Your low pressure switch may not be working right if your furnace inducer motor starts up in high speed and high ignition, then loses speed and changes into low-fire mode about 30 seconds after.
Your furnace will communicate something’s not right with a red flash from its indicator light, which it uses to exhibit error codes. It has this red light to flash code, like Morse code.
You may observe fast flashes or an alternating slow flash as it reports a fault code.
Estimated Repair Cost for Furnace Error Code 229
A blocked vent or a draft can also create the error, so your Roy Inch & Sons Service Experts Heating & Air Conditioning professional will look at other parts of your furnace first.
The cost to fix your furnace relies on what’s wrong with it and how long it takes to fix it.
You can plan to pay between $40 and $350 if you have to have a new low-fire pressure switch.
Rely on the Experts at Roy Inch & Sons Service Experts Heating & Air Conditioning
When you need to have your furnace mended, reach out to the Experts at Roy Inch & Sons Service Experts Heating & Air Conditioning to decipher the fault code and take care of the situation.
Call us at 226-270-1164 or schedule an appointment online today.