Fixing 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 wouldn’t close.

It’s better to have an Expert like one from Service Experts Heating & Air Conditioning in Fort Lauderdale work on repairing or replacing this part. Our technicians are ACE certified, which means they’re well-prepared to fix a furnace error like this one.

We want you to be absolutely content with our furnace repair in Fort Lauderdale. 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 Fails

Your low pressure switch may not be operating correctly if your furnace inducer motor begins in high speed and high ignition, then weakens and shifts into low-fire mode about 30 seconds afterward.

Your furnace will indicates something’s amiss with a red flash from its indicator light, which it uses to show 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 Service Experts Heating & Air Conditioningprofessional will investigate 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 Service Experts Heating & Air Conditioning

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

Call us at or schedule an appointment online today.

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