Fixing Error Code 229 on Your Lennox® Furnace

Getting error code 229 on your Lennox® furnace?

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

It’s best to have an Expert like one from Stallion Heating and Air Conditioning in Philadelphia work on repairing or replacing this part. Our technicians are ACE certified, which means they’re ready to fix a furnace error like the one you’re experiencing.

We want you to be absolutely content 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 work more efficiently. These switches also make sure your furnace runs safely and vents excess gases from the heat exchanger.

What Happens When a Low-Fire Pressure Switch Fails

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

Your HVAC will demonstrate something’s wrong 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 tells you a fault code.

Estimated Repair Cost for Furnace Error Code 229

A blocked vent or a draft can also create the error, so your Stallion Heating and Air Conditioningtechnician will look at other parts of your furnace first.

The bill 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 have to have a new low-fire pressure switch.

Turn to the Experts at Stallion Heating and Air Conditioning

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

Call us at or schedule an appointment online today.

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