Fixing Error Code 228 on Your Lennox® Furnace

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

This indicates your HVAC equipment couldn’t adjust its pressure switch before turning on. As a consequence, your system will not run for your safety.

Repairing or replacing this part is better left to the professionals at R & M Climate Control Service Experts Heating & Air Conditioning in Knoxville. 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 fixing a furnace error.

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

How a Pressure Switch Works

This part plays a prominent part as your furnace prepares to warm your space.

Here’s what occurs after your thermostat’s call for heat:

  • Your furnace’s control board begins 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 Malfunctions

When your pressure switch isn’t operating promptly, you’ll likely hear the fan going and the switch clicking multiple 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 present error codes. It uses this red light to flash code, like Morse code.

You may note quick 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 R & M Climate Control Service Experts Heating & Air Conditioning technician will check other parts of your furnace first. Some other issues can also cause the error code, like a clogged vent or cracked hose.

The bill 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 plan to pay between $40 to $350.

Trust the Experts at R & M Climate Control Service Experts Heating & Air Conditioning

If you should have furnace repair, turn to the professionals from R & M Climate Control Service Experts Heating & Air Conditioning to understand the fault code and fix the situation to your standards.

Call us at 865-229-6176 or schedule an appointment online today.


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