Fixing Error Code 228 on Your Lennox® Furnace

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

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

Repairing or replacing this part is best left to the technicians at Service Experts Heating & Air Conditioning in Orlando. Our ACE-certified technicians are among the elite 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 completely satisfied with our quality furnace repair* for a year.

How a Pressure Switch Works

This part plays a critical duty as your furnace prepares to warm your house.

Here’s what happens 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 pulls in new gas and air so the burners can fire.
  • When the pressure switch senses that plenty of 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 Breaks Down

When your pressure switch isn’t functioning correctly, you’ll likely hear the fan run and the switch clicking multiple times before the furnace switches off completely. When a part isn’t working right, your furnace will turn off for your safety.

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 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 Service Experts Heating & Air Conditioning Expert will investigate other parts of your furnace first. A handful of other issues can also cause the error code, like a clogged vent or cracked hose.

The cost to repair 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 expect to pay between $40 to $350.

Trust the Experts at Service Experts Heating & Air Conditioning

If you need furnace repair, turn to the professionals from Service Experts Heating & Air Conditioning to diagnose the fault code and fix the issue to your satisfaction.

Call us at 407-329-7661 or schedule an appointment online today.