Repairing Error Code 229 on Your Lennox® Furnace

Getting 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 an Expert like one from Becht/Givens Service Experts in Louisville work on repairing or replacing this part. Our technicians are NATE certified, which means they’re well-equipped to fix a furnace error like this one.

We want you to be fully content with our furnace repair in Louisville. 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 be more efficient. These switches also guarantee 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 correctly if your furnace inducer motor switches on in high speed and high ignition, then weakens and shifts into low-fire mode about 30 seconds afterward.

Your system will indicates 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 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 create the error, so your Becht/Givens Service Experts technician 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 plan to pay between $40 and $350 if you have to have a new low-fire pressure switch.

Rely on the Experts at Becht/Givens Service Experts

When you need to have your furnace fixed, reach out to the Experts at Becht/Givens Service Experts to work out the fault code and take care of the situation.

Call us at 502-785-8230 or schedule an appointment online today.