Fixing Error Code 228 on Your Lennox® Furnace

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

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

Repairing or replacing this part is best left to the technicians at Church Services in Houston. Our NATE-certified technicians are among the best in the industry. They’re well-equipped to work on all of your heating needs, including clearing a furnace error.

We want you to be thoroughly 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 a critical duty as your furnace prepares to work in your space.

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 exhausts 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 signals the control board to ignite the furnace.
  • Your furnace ignites and provides heat.

What Happens When a Pressure Switch Fails

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 turns off completely. When a part isn’t performing right, your furnace will turn off for your safety.

Your furnace will let you know something is amiss 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 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 Church Services technician will check other parts of your furnace first. Some other issues can also generate the error code, like a clogged vent or cracked hose.

The price to fix 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.

Start with the Experts at Church Services

If you require furnace repair, turn to the pros from Church Services to diagnose the fault code and fix the situation to your satisfaction.

Call us at 713-396-3760 or schedule an appointment online today.