Repairing Error Code 229 on Your Lennox® Furnace

Seeing 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 better to have a professional like one from Strand Brothers Service Experts in Austin finish repairing or replacing this part. Our technicians are NATE certified, which means they’re well-prepared to fix a furnace error like yours.

We want you to be completely satisfied with our furnace repair. 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 help the system to run at different speeds—and use less energy. These switches also make sure your furnace runs safely and vents excess gases from the heat exchanger.

What Happens When a Low-Fire Pressure Switch Doesn’t Work

Your low pressure switch may not be functioning right if your furnace inducer motor starts up in high speed and high ignition, then slows down and changes into low-fire mode about 30 seconds after.

Your system will communicate something’s not right 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 observe 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 investigate 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 plan 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 repaired, reach out to the Experts at Strand Brothers Service Experts to decipher the fault code and take care of the issue.

Call us at 512-592-3072 or schedule an appointment online today.