Fixing Error Code 229 on Your Lennox® Furnace

Noticing 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 better to let a pro like one from Bob Brown Service Experts in Tempe handle repairing or replacing this part. Our technicians are NATE certified, which means they’re ready to fix a furnace error like the one you’re experiencing.

We want you to be absolutely content with our furnace repair in Tempe. 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 let the system to run at different speeds—and use less energy. These switches also ensure your furnace runs safely and vents excess gases from the heat exchanger.

What Happens When a Low-Fire Pressure Switch Fails

Your low pressure switch may not be functioning properly if your furnace inducer motor begins in high speed and high ignition, then slows down and shifts into low-fire mode about 30 seconds after.

Your system will demonstrate something’s not right 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 trigger the error, so your Bob Brown Service Experts professional will check other parts of your furnace first.

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

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

Turn to the Experts at Bob Brown Service Experts

When you need to have your furnace repaired, reach out to the Experts at Bob Brown Service Experts to figure out the fault code and take care of the situation.

Call us at 623-243-4517 or schedule an appointment online today.