Clearing Error Code 229 on Your Lennox® Furnace

Seeing error code 229 on your Lennox® furnace?

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

It’s best to have an Expert like one from Strand Brothers Service Experts in Austin handle repairing or replacing this part. Our technicians are NATE certified, which means they’re well-equipped to fix a furnace error like the one you’re experiencing.

We want you to be completely content with our furnace repair in Austin. 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 ensure your furnace runs safely and vents excess 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 starts up in high speed and high ignition, then weakens and enters into low-fire mode about 30 seconds afterward.

Your HVAC will demonstrate something’s amiss 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 see 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 trigger the error, so your Strand Brothers Service Experts Expert will check other parts of your furnace first.

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

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

Trust the Experts at Strand Brothers Service Experts

When you need to have your furnace fixed, contact the Experts at Strand Brothers Service Experts to decipher the fault code and take care of the issue.

Call us at 512-596-1257 or schedule an appointment online today.