Fixing Error Code 228 on Your Lennox® Furnace

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

This means your HVAC equipment couldn’t correct its pressure switch before starting. As a consequence, 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 Roanoke. Our NATE-certified technicians are among the brightest in the industry. They’re well-equipped 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 Roanoke. 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 work in your house.

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

  • Your furnace’s control board starts running the draft inducer blower motor. This exhausts 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 commands 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 operating correctly, you’ll likely hear the fan run 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 for your safety.

Your furnace will show you something is wrong 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 notice quick flashes or an alternating slow flash as it transmits 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 cause the error code, like a congested vent or cracked hose.

The bill to remedy your furnace depends on what’s wrong 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 problem to your requirements.

Call us at 540-302-8645 or schedule an appointment online today.