Fixing Error Code 228 on Your Lennox® Furnace

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

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

Repairing or replacing this part is best left to the Experts at Service Experts Heating & Air Conditioning in Shreveport. Our ACE-certified technicians are among the best in the industry. They’re well-prepared to work on all of your heating needs, including fixing a furnace error.

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

How a Pressure Switch Works

This part plays a prominent role as your furnace prepares to warm your house.

Here’s what happens after your thermostat’s call for heat:

  • Your furnace’s control board commences 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 creates heat.

What Happens When a Pressure Switch Fails

When your pressure switch isn’t functioning the way it should, you’ll likely hear the fan going and the switch clicking a couple times before the furnace turns off completely. When a part isn’t working right, your furnace will turn off to protect you.

Your furnace will tell you something is amiss 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 passes on a fault code.

Estimated Repair Cost for Furnace Error Code 228

Before replacing the switch, your Service Experts Heating & Air Conditioning tech 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 remedy 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 Service Experts Heating & Air Conditioning

If you require furnace repair, reach out to the professionals from Service Experts Heating & Air Conditioning to understand the fault code and fix the situation to your standards.

Call us at 318-588-8163 or schedule an appointment online today.