Fixing Error Code 228 on Your Lennox® Furnace

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

This indicates your HVAC equipment couldn’t correct its pressure switch before turning on. As a consequence, your system will not run for safety reasons.

Repairing or replacing this part is better left to the professionals at Comfort Masters Service Experts Heating & Air Conditioning in Wheeling. Our NATE-certified technicians are among the elite in the industry. They’re well-prepared to handle all of your heating needs, including clearing a furnace error.

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

How a Pressure Switch Works

This part plays an important role as your furnace prepares to work in your house.

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

  • Your furnace’s control board starts running the draft inducer blower motor. This drains combustion gases from the heat exchanger and moves 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 provides heat.

What Happens When a Pressure Switch Malfunctions

When your pressure switch isn’t functioning correctly, you’ll likely hear the fan start and the switch clicking a few times before the furnace shuts down completely. When a part isn’t working 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 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 passes on a fault code.

Estimated Repair Cost for Furnace Error Code 228

Before replacing the switch, your Comfort Masters Service Experts Heating & Air Conditioning technician will investigate other parts of your furnace first. Some other issues can also create the error code, like a congested vent or cracked hose.

The cost to repair your furnace depends on what’s defective 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 Comfort Masters Service Experts Heating & Air Conditioning

If you should have furnace repair, turn to the technicians from Comfort Masters Service Experts Heating & Air Conditioning to check out the fault code and fix the situation to your satisfaction.

Call us at 847-250-6729 or schedule an appointment online today.


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