Fixing Error Code 229 on Your Lennox® Furnace

Seeing error code 229 on your Lennox® furnace?

This indicates your furnace is ignited at high speed because its low pressure switch didn’t close.

It’s important to allow a pro like one from Service Experts Heating & Air Conditioning in Niagara Falls handle 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 completely content 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 multiple pressure switches to allow the system to run at different speeds—and be more efficient. These switches also ensure your furnace runs safely and vents extraneous gases from the heat exchanger.

What Happens When a Low-Fire Pressure Switch Fails

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

Your HVAC will communicate something’s amiss 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 notice 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 Service Experts Heating & Air Conditioning Expert will investigate 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 have to have a new low-fire pressure switch.

Rely on the Experts at Service Experts Heating & Air Conditioning

When you need to have your furnace repaired, reach out to the Experts at Service Experts Heating & Air Conditioning to work out the fault code and take care of the problem.

Call us at 289-273-2229 or schedule an appointment online today.