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Fixing Error Code 228 on Your Lennox® Furnace

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

This means your HVAC equipment couldn’t adjust its pressure switch before turning on. As a result, your system will not run for your protection.

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

We want you to be thoroughly 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 work in your space.

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

  • Your furnace’s control board begins 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 sufficient air is being pulled into the burners, it closes and signals the control board to ignite the furnace.
  • Your furnace ignites and creates heat.

What Happens When a Pressure Switch Malfunctions

When your pressure switch isn’t functioning correctly, 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 performing right, your furnace will turn off for your safety.

Your furnace will tell 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 see 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 blocked vent or cracked hose.

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

Start with the Experts at Church Services

If you need furnace repair, trust the pros from Church Services to understand the fault code and fix the situation to your satisfaction.

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