Fixing Error Code 228 on Your Lennox® Furnace

Not feeling heat and noticing 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 a task for the technicians at Service Experts Heating, Air Conditioning & Plumbing  in the U.S.. Our ACE-certified technicians are among the best in the industry. They’re well-prepared 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 an important duty as your furnace prepares to warm 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 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 supplies heat.

What Happens When a Pressure Switch Breaks Down

When your pressure switch isn’t operating the way it should, you’ll likely hear the fan run and the switch clicking a few times before the furnace shuts down completely. When a part isn’t working right, your furnace will turn off as a safety precaution.

Your furnace will tell you something is amiss with a red flash from its indicator light, which it uses to exhibit 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 communicates a fault code.

Estimated Repair Cost for Furnace Error Code 228

Before replacing the switch, your Service Experts Heating, Air Conditioning & Plumbing  technician will investigate other parts of your furnace first. Several other issues can also create the error code, like a congested vent or cracked hose.

The bill to fix 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 anticipate to pay between $40 to $350.

Trust the Experts at Service Experts Heating, Air Conditioning & Plumbing

If you should have furnace repair, reach out to the professionals from Service Experts Heating, Air Conditioning & Plumbing  to check out the fault code and fix the situation to your satisfaction.

Call us at  or schedule an appointment online today.

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