Fixing Error Code 228 on Your Lennox® Furnace

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

This shows your HVAC equipment couldn’t adjust its pressure switch before turning on. As a consequence, your system will not run for safety reasons.

Repairing or replacing this part is a task for the professionals at Freschi Service Experts in Concord. Our NATE-certified technicians are among the best in the industry. They’re well-equipped to work on all of your heating needs, including fixing a furnace error.

We want you to be completely satisfied with our quality furnace repair in Concord. 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 work in your home.

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 pulls in new gas and air so the burners can fire.
  • When the pressure switch senses that sufficient 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 Fails

When your pressure switch isn’t functioning the way it should, you’ll likely hear the fan going and the switch clicking multiple times before the furnace switches off completely. When a part isn’t functioning right, your furnace will turn off to protect you.

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

You may see short 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 Freschi Service Experts Expert will investigate other parts of your furnace first. Several other issues can also generate the error code, like a blocked vent or cracked hose.

The cost to remedy 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.

Trust the Experts at Freschi Service Experts

If you should have furnace repair, trust the pros from Freschi Service Experts to understand the fault code and fix the problem to your requirements.

Call us at 925-384-1303 or schedule an appointment online today.