Seeing error code 229 on your Lennox® furnace?
This signifies your furnace is ignited at high speed because its low pressure switch couldn’t close.
It’s important to have a professional like one from Donelson Air Service Experts in Nashville finish repairing or replacing this part. Our technicians are ACE certified, which means they’re well-prepared to fix a furnace error like this one.
We want you to be completely satisfied with our furnace repair in Nashville. 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 numerous pressure switches to let the system to run at different speeds—and use less energy. These switches also guarantee your furnace runs safely and vents extra gases from the heat exchanger.
What Happens When a Low-Fire Pressure Switch Malfunctions
Your low pressure switch may not be operating properly if your furnace inducer motor begins in high speed and high ignition, then loses speed and shifts into low-fire mode about 30 seconds after.
Your HVAC will communicate something’s amiss with a red flash from its indicator light, which it uses to show error codes. It has this red light to flash code, like Morse code.
You may notice fast flashes or an alternating slow flash as it tells you a fault code.
Estimated Repair Cost for Furnace Error Code 229
A blocked vent or a draft can also create the error, so your Donelson Air Service Experts technician will check 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 expect to pay between $40 and $350 if you have to have a new low-fire pressure switch.
Rely on the Experts at Donelson Air Service Experts
When you need to have your furnace mended, contact the Experts at Donelson Air Service Experts to figure out the fault code and take care of the problem.
Call us at 615-953-9885 or schedule an appointment online today.