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 important to let an Expert like one from Stevenson Service Experts in Columbus finish repairing or replacing this part. Our technicians are ACE certified, which means they’re ready to fix a furnace error like yours.

We want you to be fully happy with our furnace repair in Columbus. 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 allow 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 correctly if your furnace inducer motor begins in high speed and high ignition, then loses speed and changes into low-fire mode about 30 seconds afterward.

Your furnace 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 observe 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 generate the error, so your Stevenson Service Expertsprofessional will check other parts of your furnace first.

The cost to fix your furnace hinges 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 need a new low-fire pressure switch.

Rely on the Experts at Stevenson Service Experts

When you need to have your furnace repaired, turn to the Experts at Stevenson Service Experts to decipher the fault code and take care of the problem.

Call us at or schedule an appointment online today.

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