Fixing Error Code 228 on Your Lennox® Furnace

Not sensing any heat and seeing error code 228 from your Lennox® furnace?

This indicates your furnace couldn’t regulate its pressure switch before launching. As a consequence, your system will not run for safety reasons.

Repairing or replacing this part is better left to the Experts at Strogen's Service Experts Heating & Air Conditioning in Rochester. Our NATE-certified technicians are among the brightest in the industry. They’re well-prepared to handle all of your heating needs, including repairing a furnace error.

We want you to be thoroughly satisfied with our quality furnace repair in Rochester. That’s why we back it with a 100% Satisfaction Guarantee* for a year.

How a Pressure Switch Works

This part plays a critical duty as your furnace prepares to heat your space.

Here’s what goes on after your thermostat’s call for heat:

  • Your furnace’s control board commences running the draft inducer blower motor. This drains combustion gases from the heat exchanger and moves in new gas and air so the burners can fire.
  • When the pressure switch senses that enough air is being pulled into the burners, it closes and signals the control board to ignite the furnace.
  • Your furnace ignites and supplies heat.

What Happens When a Pressure Switch Breaks Down

When your pressure switch isn’t working correctly, you’ll likely hear the fan run and the switch clicking a few times before the furnace turns off completely. When a part isn’t performing right, your furnace will turn off as a safety precaution.

Your furnace will show you something is wrong with a red flash from its indicator light, which it uses to present error codes. It uses this red light to flash code, like Morse code.

You may notice fast flashes or an alternating slow flash as it communicates a fault code.

Estimated Repair Cost for Furnace Error Code 228

Before replacing the switch, your Strogen's Service Experts Heating & Air Conditioning technician will check other parts of your furnace first. Some other issues can also generate the error code, like a congested vent or cracked hose.

The bill to repair your furnace depends on what’s wrong with it and how long it takes to fix it.

If your pressure switch needs to be replaced, you can anticipate to pay between $40 to $350.

Start with the Experts at Strogen's Service Experts Heating & Air Conditioning

If you need furnace repair, trust the professionals from Strogen's Service Experts Heating & Air Conditioning to understand the fault code and fix the issue to your standards.

Call us at 603-923-4570 or schedule an appointment online today.


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