Fixing 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 couldn’t close.

It’s better to let a pro like one from Knochelmann Service Experts in Sharonville finish 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 fully content with our furnace repair in Sharonville. 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 guarantee your furnace runs safely and vents extra gases from the heat exchanger.

What Happens When a Low-Fire Pressure Switch Malfunctions

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

Your system will communicate 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 tells you a fault code.

Estimated Repair Cost for Furnace Error Code 229

A blocked vent or a draft can also trigger the error, so your Knochelmann Service Experts professional will investigate other parts of your furnace first.

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

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

Turn to the Experts at Knochelmann Service Experts

When you need to have your furnace mended, reach out to the Experts at Knochelmann Service Experts to work out the fault code and take care of the problem.

Call us at 859-905-0834 or schedule an appointment online today.