Repairing Error Code 229 on Your Lennox® Furnace

Seeing error code 229 on your Lennox® furnace?

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

It’s best to allow a professional like one from Sunbeam Service Experts Heating & Air Conditioning in Buffalo finish repairing or replacing this part. Our technicians are NATE certified, which means they’re ready to fix a furnace error like this one.

We want you to be fully satisfied with our furnace repair. 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 Doesn’t Work

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

Your HVAC will communicate something’s amiss 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 see fast flashes or an alternating slow flash as it reports a fault code.

Estimated Repair Cost for Furnace Error Code 229

A blocked vent or a draft can also trigger the error, so your Sunbeam Service Experts Heating & Air Conditioning professional will look at other parts of your furnace first.

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

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

Turn to the Experts at Sunbeam Service Experts Heating & Air Conditioning

When you need to have your furnace fixed, turn to the Experts at Sunbeam Service Experts Heating & Air Conditioning to decipher the fault code and take care of the situation.

Call us at 716-427-6807 or schedule an appointment online today.