Fixing Error Code 228 on Your Lennox® Furnace

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

This indicates your furnace couldn’t correct its pressure switch before starting. As a reaction, your system will not run for your protection.

Repairing or replacing this part is best left to the technicians at Mountainwest Service Experts in Salt Lake City. Our NATE-certified technicians are among the brightest in the industry. They’re well-prepared 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 Salt Lake City. That’s why we back it with a 100% Satisfaction Guarantee* for a year.

How a Pressure Switch Works

This part plays an important part as your furnace prepares to work in your house.

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

  • Your furnace’s control board begins 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 tells 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 operating promptly, you’ll likely hear the fan run and the switch clicking multiple times before the furnace switches off completely. When a part isn’t functioning right, your furnace will turn off for your safety.

Your furnace will tell 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 Mountainwest Service Experts Expert will investigate 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 cost 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 Mountainwest Service Experts

If you need furnace repair, turn to the professionals from Mountainwest Service Experts to understand the fault code and fix the issue to your satisfaction.

Call us at 385-399-0280 or schedule an appointment online today.