Fixing Error Code 228 on Your Lennox® Furnace

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

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

Repairing or replacing this part is best left to the professionals at Donelson Air Service Experts in Nashville. Our NATE-certified technicians are among the brightest 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 Nashville. That’s why we back it with a 100% Satisfaction Guarantee* for a year.

How a Pressure Switch Works

This part plays a prominent role as your furnace prepares to work in your space.

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

  • Your furnace’s control board starts running the draft inducer blower motor. This drains combustion gases from the heat exchanger and brings in new gas and air so the burners can fire.
  • When the pressure switch senses that plenty of 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 correctly, you’ll likely hear the fan run and the switch clicking a couple times before the furnace shuts down completely. When a part isn’t performing right, your furnace will turn off to protect you.

Your furnace will tell you something is wrong with a red flash from its indicator light, which it uses to exhibit 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 communicates a fault code.

Estimated Repair Cost for Furnace Error Code 228

Before replacing the switch, your Donelson Air Service Experts tech will check other parts of your furnace first. A handful of other issues can also create the error code, like a congested vent or cracked hose.

The price to remedy your furnace depends on the issue 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.

Trust the Experts at Donelson Air Service Experts

If you require furnace repair, reach out to the pros from Donelson Air Service Experts to understand the fault code and fix the issue to your standards.

Call us at 615-953-9885 or schedule an appointment online today.