Repairing Error Code 229 on Your Lennox® Furnace

Noticing error code 229 on your Lennox® furnace?

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

It’s best to have a pro like one from D.A. Bennett Service Experts in Albany work on 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 Albany. 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 help the system to run at different speeds—and work more efficiently. These switches also make sure your furnace runs safely and vents extra 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 starts up in high speed and high ignition, then loses speed and enters into low-fire mode about 30 seconds later.

Your furnace will indicates something’s wrong 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 see 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 D.A. Bennett Service Experts technician will investigate other parts of your furnace first.

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

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

Turn to the Experts at D.A. Bennett Service Experts

When you need to have your furnace repaired, turn to the Experts at D.A. Bennett Service Experts to decipher the fault code and take care of the situation.

Call us at 518-205-3324 or schedule an appointment online today.