Fixing Error Code 228 on Your Lennox® Furnace

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

This indicates your heating system couldn’t adjust its pressure switch before launching. As a reaction, your system will not run for your safety.

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 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 starts 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 plenty of air is being pulled into the burners, it closes and tells the control board to ignite the furnace.
  • Your furnace ignites and creates heat.

What Happens When a Pressure Switch Malfunctions

When your pressure switch isn’t functioning promptly, you’ll likely hear the fan run and the switch clicking multiple times before the furnace turns 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 transmits a fault code.

Estimated Repair Cost for Furnace Error Code 228

Before replacing the switch, your Service Experts Commercial HVAC technician 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 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 plan to pay between $40 to $350.

Start with the Experts at Service Experts Commercial HVAC

If you need furnace repair, trust the pros from Service Experts Commercial HVAC to understand the fault code and fix the issue to your satisfaction.

Call us at 289-201-2346 or schedule an appointment online today.