Fixing 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 didn’t close.

It’s better to let a pro like one from A-PLUS Service Experts Heating & Air Conditioning in Waldorf work on repairing or replacing this part. Our technicians are NATE certified, which means they’re well-equipped to fix a furnace error like yours.

We want you to be absolutely satisfied with our furnace repair in Waldorf. 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 be more efficient. 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 correctly 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 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 see fast flashes or an alternating slow flash as it tells you a fault code.

Estimated Repair Cost for Furnace Error Code 229

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

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

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

Trust the Experts at A-PLUS Service Experts Heating & Air Conditioning

When you need to have your furnace mended, reach out to the Experts at A-PLUS Service Experts Heating & Air Conditioning to work out the fault code and take care of the situation.

Call us at 301-747-3140 or schedule an appointment online today.