Clearing 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 wouldn’t close.

It’s important to have a pro like one from Stallion Heating and Air Conditioning in Philadelphia handle repairing or replacing this part. Our technicians are ACE certified, which means they’re well-prepared to fix a furnace error like the one you’re experiencing.

We want you to be completely satisfied with our furnace repair in Philadelphia. 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 numerous pressure switches to let the system to run at different speeds—and use less energy. These switches also make sure your furnace runs safely and vents extra gases from the heat exchanger.

What Happens When a Low-Fire Pressure Switch Doesn’t Work

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

Your HVAC 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 observe 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 Stallion Heating and Air ConditioningExpert will check 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 have to have a new low-fire pressure switch.

Trust the Experts at Stallion Heating and Air Conditioning

When you need to have your furnace mended, contact the Experts at Stallion Heating and Air Conditioning to figure out the fault code and take care of the situation.

Call us at or schedule an appointment online today.

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