Clearing Error Code 229 on Your Lennox® Furnace

Getting 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 let an Expert like one from Strand Brothers Service Experts in Austin work on repairing or replacing this part. Our technicians are NATE certified, which means they’re well-prepared to fix a furnace error like this one.

We want you to be fully 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 let the system to run at different speeds—and work more efficiently. These switches also ensure your furnace runs safely and vents extra gases from the heat exchanger.

What Happens When a Low-Fire Pressure Switch Fails

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 changes 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 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 Strand Brothers Service Experts Expert will look at other parts of your furnace first.

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

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

Turn to 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 problem.

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