Fixing Error Code 228 on Your Lennox® Furnace
Not sensing any heat and seeing error code 228 from your Lennox® furnace?
This means your furnace couldn’t adjust 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 technicians at Service Experts Heating, Air Conditioning & Plumbing in the U.S.. Our ACE-certified technicians are among the elite 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 heat your house.
Here’s what happens 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 moves in new gas and air so the burners can fire.
- When the pressure switch senses that enough air is being pulled into the burners, it closes and commands the control board to ignite the furnace.
- Your furnace ignites and provides 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 multiple times before the furnace switches off completely. When a part isn’t functioning right, your furnace will turn off to protect you.
Your furnace will show you something is amiss with a red flash from its indicator light, which it uses to exhibit error codes. It uses this red light to flash code, like Morse code.
You may note 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 Service Experts Heating, Air Conditioning & Plumbing Expert 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 cost 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 plan to pay between $40 to $350.
Start with the Experts at Service Experts Heating, Air Conditioning & Plumbing
If you need furnace repair, reach out to the technicians from Service Experts Heating, Air Conditioning & Plumbing to check out the fault code and fix the problem to your standards.
Call us at or schedule an appointment online today.