Fixing Error Code 228 on Your Lennox® Furnace

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

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

Repairing or replacing this part is best left to the Experts at Service Experts Commercial HVAC in Toronto. Our NATE-certified technicians are among the brightest in the industry. They’re well-equipped to take care of all of your heating needs, including clearing a furnace error.

We want you to be thoroughly satisfied with our quality furnace repair in Toronto. 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 home.

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

  • Your furnace’s control board begins running the draft inducer blower motor. This exhausts 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 provides heat.

What Happens When a Pressure Switch Fails

When your pressure switch isn’t working promptly, you’ll likely hear the fan going and the switch clicking multiple 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 tell you 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 quick 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 Commercial HVAC tech will check other parts of your furnace first. A handful of other issues can also cause the error code, like a clogged 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.

Start with the Experts at Service Experts Commercial HVAC

If you require furnace repair, turn to the pros from Service Experts Commercial HVAC to understand the fault code and fix the problem to your standards.

Call us at 905-453-6700 or schedule an appointment online today.