Fixing Error Code 228 on Your Lennox® Furnace

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

This indicates your HVAC equipment couldn’t adjust its pressure switch before starting. As a consequence, your system will not run for your protection.

Repairing or replacing this part is better left to the technicians at Service Experts Heating & Air Conditioning in Roanoke. Our NATE-certified technicians are among the best in the industry. They’re well-prepared to take care of all of your heating needs, including fixing a furnace error.

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

How a Pressure Switch Works

This part plays a prominent duty 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 starts running the draft inducer blower motor. This exhausts combustion gases from the heat exchanger and pulls 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 commands the control board to ignite the furnace.
  • Your furnace ignites and creates heat.

What Happens When a Pressure Switch Fails

When your pressure switch isn’t operating the way it should, you’ll likely hear the fan going and the switch clicking a few times before the furnace shuts down completely. When a part isn’t functioning right, your furnace will turn off for your safety.

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 see 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 Service Experts Heating & Air Conditioning tech will look at 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 bill 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 expect to pay between $40 to $350.

Trust the Experts at Service Experts Heating & Air Conditioning

If you should have furnace repair, trust the pros from Service Experts Heating & Air Conditioning to diagnose the fault code and fix the issue to your requirements.

Call us at 540-302-8645 or schedule an appointment online today.