Fixing Error Code 228 on Your Lennox® Furnace

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

This shows your HVAC equipment couldn’t correct its pressure switch before starting. As a reaction, your system will not run for your protection.

Repairing or replacing this part is best left to the technicians at Service Experts Heating & Air Conditioning in Longmont. Our NATE-certified technicians are among the brightest in the industry. They’re well-equipped to work on all of your heating needs, including repairing a furnace error.

We want you to be absolutely satisfied with our quality furnace repair in Longmont. That’s why we back it with a 100% Satisfaction Guarantee* 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 occurs 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 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 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 the way it should, you’ll likely hear the fan going and the switch clicking a couple times before the furnace switches off completely. When a part isn’t working right, your furnace will turn off as a safety precaution.

Your furnace will tell you something is incorrect 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 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 tech will check other parts of your furnace first. Some other issues can also cause the error code, like a congested vent or cracked hose.

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

Start with the Experts at Service Experts Heating & Air Conditioning

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

Call us at 303-647-5749 or schedule an appointment online today.


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