Repairing Error Code 229 on Your Lennox® Furnace

Seeing error code 229 on your Lennox® furnace?

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

It’s important to have a pro like one from Stevenson Service Experts in Dayton handle 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 absolutely content with our furnace repair in Dayton. 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 multiple pressure switches to allow the system to run at different speeds—and work more efficiently. These switches also make sure your furnace runs safely and vents extraneous 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 weakens and changes into low-fire mode about 30 seconds afterward.

Your furnace will demonstrate something’s wrong with a red flash from its indicator light, which it uses to display 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 announces a fault code.

Estimated Repair Cost for Furnace Error Code 229

A blocked vent or a draft can also create the error, so your Stevenson Service Experts Expert will check other parts of your furnace first.

The cost to fix your furnace hinges 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 need a new low-fire pressure switch.

Trust the Experts at Stevenson Service Experts

When you need to have your furnace repaired, reach out to the Experts at Stevenson Service Experts to figure out the fault code and take care of the problem.

Call us at 937-503-7896 or schedule an appointment online today.