Fixing Error Code 229 on Your Lennox® Furnace

Getting 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 allow an Expert like one from Fras-Air/General Service Experts in Hillsborough finish repairing or replacing this part. Our technicians are NATE certified, which means they’re well-prepared to fix a furnace error like yours.

We want you to be fully content with our furnace repair in Hillsborough. 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 allow 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 working 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 communicate something’s not right 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 announces a fault code.

Estimated Repair Cost for Furnace Error Code 229

A blocked vent or a draft can also generate the error, so your Fras-Air/General Service Experts Expert will check other parts of your furnace first.

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

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

Turn to the Experts at Fras-Air/General Service Experts

When you need to have your furnace repaired, contact the Experts at Fras-Air/General Service Experts to decipher the fault code and take care of the problem.

Call us at 908-448-2154 or schedule an appointment online today.