Clearing 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 couldn’t close.

It’s important to let a professional like one from Service Experts Heating & Air Conditioning in Roanoke work on 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 completely satisfied with our furnace repair in Roanoke. 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 help 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 Doesn’t Work

Your low pressure switch may not be operating right if your furnace inducer motor switches on in high speed and high ignition, then loses speed and enters into low-fire mode about 30 seconds later.

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 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 create the error, so your Service Experts Heating & Air Conditioning professional 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 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 Service Experts Heating & Air Conditioning

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

Call us at 540-302-8645 or schedule an appointment online today.