Fixing Error Code 228 on Your Lennox® Furnace

Not getting heat and noticing error code 228 from your Lennox® furnace?

This means your HVAC equipment couldn’t correct its pressure switch before launching. As a reaction, your system will not run for your safety.

Repairing or replacing this part is better left to the technicians at Komfort Air in Mint Hill. Our NATE-certified technicians are among the elite in the industry. They’re well-qualified to work on all of your heating needs, including repairing a furnace error.

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

How a Pressure Switch Works

This part plays an important role as your furnace prepares to warm your house.

Here’s what occurs after your thermostat’s call for heat:

  • Your furnace’s control board begins running the draft inducer blower motor. This pushes out combustion gases from the heat exchanger and brings 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 operating correctly, you’ll likely hear the fan start and the switch clicking a few times before the furnace turns off completely. When a part isn’t working right, your furnace will turn off as a safety precaution.

Your furnace will tell you something is amiss 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 note fast flashes or an alternating slow flash as it passes on a fault code.

Estimated Repair Cost for Furnace Error Code 228

Before replacing the switch, your Komfort Air tech will look at other parts of your furnace first. Some other issues can also cause the error code, like a clogged vent or cracked hose.

The cost 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 expect to pay between $40 to $350.

Count on the Experts at Komfort Air

If you should have furnace repair, turn to the pros from Komfort Air to check out the fault code and fix the issue to your standards.

Call us at 704-705-8135 or schedule an appointment online today.