Fixing Error Code 229 on Your Lennox® Furnace

Noticing error code 229 on your Lennox® furnace?

This means your furnace is ignited at high speed because its low pressure switch couldn’t close.

It’s important to let a pro like one from R & M Climate Control Service Experts Heating & Air Conditioning in Knoxville work on repairing or replacing this part. Our technicians are NATE certified, which means they’re well-prepared to fix a furnace error like the one you’re experiencing.

We want you to be fully satisfied with our furnace repair in Knoxville. 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 Fails

Your low pressure switch may not be functioning properly if your furnace inducer motor switches on in high speed and high ignition, then slows down and shifts into low-fire mode about 30 seconds after.

Your system 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 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 R & M Climate Control Service Experts Heating & Air Conditioning Expert will check other parts of your furnace first.

The cost to fix your furnace depends on what’s wrong with it and how long it takes to remedy it.

You can plan to pay between $40 and $350 if you require a new low-fire pressure switch.

Turn to the Experts at R & M Climate Control Service Experts Heating & Air Conditioning

When you need to have your furnace mended, contact the Experts at R & M Climate Control Service Experts Heating & Air Conditioning to decipher the fault code and take care of the issue.

Call us at 865-229-6176 or schedule an appointment online today.