Fixing Error Code 228 on Your Lennox® Furnace

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

This shows your heating system couldn’t regulate its pressure switch before turning on. As a reaction, your system will not run for your protection.

Repairing or replacing this part is a task for the professionals at Service Experts Heating & Air Conditioning in Cocoa. Our NATE-certified technicians are among the best in the industry. They’re well-prepared to take care of all of your heating needs, including repairing a furnace error.

We want you to be completely satisfied with our quality furnace repair in Cocoa. That’s why we back it with a 100% Satisfaction Guarantee* for a year.

How a Pressure Switch Works

This part plays an important duty as your furnace prepares to heat your space.

Here’s what goes on after your thermostat’s call for heat:

  • Your furnace’s control board commences running the draft inducer blower motor. This pushes out combustion gases from the heat exchanger and moves 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 commands 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 working correctly, you’ll likely hear the fan start and the switch clicking a few times before the furnace turns off completely. When a part isn’t functioning right, your furnace will turn off to protect you.

Your furnace will show 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 technician will check other parts of your furnace first. Several other issues can also create the error code, like a clogged vent or cracked hose.

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

Count on the Experts at Service Experts Heating & Air Conditioning

If you should have furnace repair, turn to the pros from Service Experts Heating & Air Conditioning to diagnose the fault code and fix the issue to your standards.

Call us at 321-428-7635 or schedule an appointment online today.