Repairing 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 best to let a professional like one from Service Experts Heating & Air Conditioning in Shreveport work on repairing or replacing this part. Our technicians are NATE certified, which means they’re well-prepared to fix a furnace error like this one.

We want you to be absolutely satisfied with our furnace repair in Shreveport. 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 excess gases from the heat exchanger.

What Happens When a Low-Fire Pressure Switch Malfunctions

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

Your furnace will demonstrate 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 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 create the error, so your Service Experts Heating & Air Conditioning technician will look at other parts of your furnace first.

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

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

Trust the Experts at Service Experts Heating & Air Conditioning

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

Call us at 318-588-8163 or schedule an appointment online today.