Clearing Error Code 229 on Your Lennox® Furnace

Getting 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 important to have a professional like one from Stallion Heating and Air Conditioning in Philadelphia finish 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 fully 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 work more efficiently. These switches also ensure your furnace runs safely and vents excess gases from the heat exchanger.

What Happens When a Low-Fire Pressure Switch Malfunctions

Your low pressure switch may not be operating right if your furnace inducer motor switches on in high speed and high ignition, then slows down and shifts into low-fire mode about 30 seconds afterward.

Your system will demonstrate something’s wrong 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 announces 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 Conditioningtechnician will check 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 remedy it.

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

Rely on the Experts at Stallion Heating and Air Conditioning

When you need to have your furnace mended, turn to 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.

  • Zoning Systems: Control the Temperature in Every Room

    Central heating and air systems have radically changed home comfort and made it possible to stay completely cozy in any season or climate. But while centralized systems are a handy way to regulate the temperature, they at times fall short when it comes to evenly distributing heated or cooled air... Continue reading

  • Eight Popular Heating Fallacies Debunked

    There are many myths out there about home heating that create confusion and inefficient furnace use. It’s time to clear up these common misconceptions. Here, the heating professionals at Service Experts Heating, Air Conditioning & Plumbing get to the bottom of the eight most common myths to... Continue reading

  • Eight Upgrades to Boost Your Home HVAC System

    During the coldest time of the year in the U.S., there’s no better way to improve your home’s comfort than with some effective upgrades. It’s not just about keeping the house toasty warm as the snow begins to fall—it’s about boosting efficiency and improving the very air you breathe.... Continue reading