Fixing Error Code 228 on Your Lennox® Furnace

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

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

Repairing or replacing this part is a task for the professionals at Stallion Heating and Air Conditioning  in Philadelphia. Our ACE-certified technicians are among the brightest in the industry. They’re well-qualified to take care of all of your heating needs, including clearing 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 duty as your furnace prepares to warm your home.

Here’s what occurs 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 brings in new gas and air so the burners can fire.
  • When the pressure switch senses that sufficient 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 operating promptly, 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 working 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 see quick flashes or an alternating slow flash as it transmits a fault code.

Estimated Repair Cost for Furnace Error Code 228

Before replacing the switch, your Stallion Heating and Air Conditioning  technician will investigate other parts of your furnace first. Several other issues can also cause the error code, like a congested vent or cracked hose.

The price to remedy 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 anticipate to pay between $40 to $350.

Trust the Experts at Stallion Heating and Air Conditioning

If you require furnace repair, reach out to the pros from Stallion Heating and Air Conditioning  to diagnose the fault code and fix the problem to your satisfaction.

Call us at  or schedule an appointment online today.