Fixing Error Code 228 on Your Lennox® Furnace

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

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

Repairing or replacing this part is better left to the technicians at Knochelmann Service Experts Heating & Air Conditioning in Sharonville. 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 Sharonville. 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 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 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 enough air is being pulled into the burners, it closes and signals the control board to ignite the furnace.
  • Your furnace ignites and supplies heat.

What Happens When a Pressure Switch Breaks Down

When your pressure switch isn’t functioning correctly, you’ll likely hear the fan going and the switch clicking a few times before the furnace switches off completely. When a part isn’t functioning right, your furnace will turn off as a safety precaution.

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 short 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 Knochelmann Service Experts Heating & Air Conditioning technician will investigate other parts of your furnace first. Several other issues can also cause the error code, like a blocked vent or cracked hose.

The price to fix 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.

Count on the Experts at Knochelmann Service Experts Heating & Air Conditioning

If you need furnace repair, reach out to the professionals from Knochelmann Service Experts Heating & Air Conditioning to check out the fault code and fix the issue to your requirements.

Call us at 859-905-0834 or schedule an appointment online today.