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Clearing 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 wouldn’t close.

It’s best to allow a professional like one from Abbey Air Service Experts in Oakville finish repairing or replacing this part. Our technicians are NATE certified, which means they’re well-prepared to fix a furnace error like the one you’re experiencing.

We want you to be absolutely satisfied with our furnace repair in Oakville. 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 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 Malfunctions

Your low pressure switch may not be working 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 HVAC will communicate something’s amiss with a red flash from its indicator light, which it uses to show 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 reports a fault code.

Estimated Repair Cost for Furnace Error Code 229

A blocked vent or a draft can also trigger the error, so your Abbey Air Service Experts Expert will look at other parts of your furnace first.

The bill to fix your furnace depends 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 need a new low-fire pressure switch.

Trust the Experts at Abbey Air Service Experts

When you need to have your furnace fixed, contact the Experts at Abbey Air Service Experts to decipher the fault code and take care of the problem.

Call us at 289-813-5566 or schedule an appointment online today.