Fixing Error Code 228 on Your Lennox® Furnace

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

This means your furnace couldn’t regulate its pressure switch before starting. As a result, your system will not run for safety reasons.

Repairing or replacing this part is best left to the professionals at Falso Service Experts  in East Syracuse. Our ACE-certified technicians are among the best in the industry. They’re well-prepared to handle all of your heating needs, including fixing 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 role as your furnace prepares to warm your home.

Here’s what happens 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 pulls 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 tells the control board to ignite the furnace.
  • Your furnace ignites and creates heat.

What Happens When a Pressure Switch Fails

When your pressure switch isn’t functioning correctly, you’ll likely hear the fan start 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 to protect you.

Your furnace will let you know 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 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 Falso Service Experts  tech will check other parts of your furnace first. Several other issues can also cause the error code, like a blocked vent or cracked hose.

The price to fix 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 expect to pay between $40 to $350.

Trust the Experts at Falso Service Experts

If you need furnace repair, trust the professionals from Falso Service Experts  to diagnose the fault code and fix the problem to your standards.

Call us at  or schedule an appointment online today.

Savings For You

See All Offers Here >
Service Experts Advantage Program logo

Make No Payments for 30 Days!

  • Upgrade to Worry-Free Comfort with the Advantage Program and make NO payments for 30 days!
maintenance icon

$50 OFF HVAC Tune-up Special

There’s no reason to skip your seasonal maintenance that saves energy and helps ensure your air conditioner and heater will work reliably all season long.

  • Regularly $129, now only $79
  • Save up to 30% on energy bills
  • Written Expert Service Guarantee

© 2023 Service Experts, Service Experts Heating & Air Conditioning, and the Service Experts logo and design are registered trademarks of Service Experts LLC and used under license by SE Canada Inc. All Rights Reserved. *Not applicable to the Advantage Program. See your signed Advantage Program Agreement for full details and exclusions. 100% Satisfaction Guarantee is subject to certain restrictions and limitations as set forth in the applicable Terms and Conditions.