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 regulate its pressure switch before starting. As a reaction, your system will not run for your safety.

Repairing or replacing this part is best left to the professionals at Boehmers/Cronin Emery Service Experts in Kitchener. Our NATE-certified technicians are among the elite in the industry. They’re well-prepared to work on all of your heating needs, including clearing a furnace error.

We want you to be absolutely satisfied with our quality work. 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 heat 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 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 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 going and the switch clicking a few times before the furnace turns off completely. When a part isn’t performing right, your furnace will turn off to protect you.

Your furnace will show you something is incorrect 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 note fast flashes or an alternating slow flash as it passes on a fault code.

Estimated Repair Cost for Furnace Error Code 228

Before replacing the switch, your Boehmers/Cronin Emery Service Experts technician will investigate other parts of your furnace first. Several other issues can also create the error code, like a clogged vent or cracked hose.

The bill 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 anticipate to pay between $40 to $350.

Trust the Experts at Boehmers/Cronin Emery Service Experts

If you need furnace repair, turn to the pros from Boehmers/Cronin Emery Service Experts to diagnose the fault code and fix the situation to your requirements.

Call us at 519-804-1617 or schedule an appointment online today.