Clearing Error Code 229 on Your Lennox® Furnace

Getting 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 important to let a pro like one from Aramendia Plumbing, Heating and Air in San Antonio handle 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 fully satisfied with our furnace repair in San Antonio. 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 various pressure switches to let the system to run at different speeds—and use less energy. 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 operating correctly if your furnace inducer motor switches on in high speed and high ignition, then slows down and shifts into low-fire mode about 30 seconds later.

Your furnace will demonstrate 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 notice 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 create the error, so your Aramendia Plumbing, Heating and Air technician 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 Aramendia Plumbing, Heating and Air

When you need to have your furnace repaired, contact the Experts at Aramendia Plumbing, Heating and Air to decipher the fault code and take care of the situation.

Call us at 210-404-4233 or schedule an appointment online today.