Fixing Error Code 228 on Your Lennox® Furnace

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

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

Repairing or replacing this part is best left to the professionals at Calverley Service Experts  in Fort Worth. Our ACE-certified technicians are among the best in the industry. They’re well-qualified to handle all of your heating needs, including fixing a furnace error.

We want you to be completely satisfied with our quality furnace repair* for a year.

How a Pressure Switch Works

This part plays an important role as your furnace prepares to warm your home.

Here’s what happens 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 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 operating correctly, you’ll likely hear the fan run and the switch clicking a few times before the furnace shuts down completely. When a part isn’t performing right, your furnace will turn off to protect you.

Your furnace will let you know 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 communicates a fault code.

Estimated Repair Cost for Furnace Error Code 228

Before replacing the switch, your Calverley Service Experts  tech will check other parts of your furnace first. Several other issues can also cause the error code, like a clogged vent or cracked hose.

The price to repair 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 plan to pay between $40 to $350.

Trust the Experts at Calverley Service Experts

If you should have furnace repair, trust the professionals from Calverley Service Experts  to diagnose the fault code and fix the problem to your satisfaction.

Call us at  or schedule an appointment online today.

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