Not getting heat and receiving error code 228 from your Lennox® furnace?
This means your furnace couldn’t adjust its pressure switch before turning on. As a reaction, your system will not run for your safety.
Repairing or replacing this part is best left to the Experts at Finch Air Conditioning & Heating in La Porte. Our ACE-certified technicians are among the brightest in the industry. They’re well-prepared to take care of all of your heating needs, including clearing a furnace error.
We want you to be thoroughly satisfied with our quality furnace repair* for a year.
How a Pressure Switch Works
This part plays a critical part as your furnace prepares to heat your space.
Here’s what goes on after your thermostat’s call for heat:
- Your furnace’s control board begins 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 enough 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 Breaks Down
When your pressure switch isn’t working promptly, you’ll likely hear the fan start and the switch clicking a couple times before the furnace switches off completely. When a part isn’t performing right, your furnace will turn off for your safety.
Your furnace will show you something is amiss 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 note quick 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 Finch Air Conditioning & Heating technician will investigate other parts of your furnace first. Some other issues can also generate the error code, like a blocked vent or cracked hose.
The cost 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 Finch Air Conditioning & Heating
If you should have furnace repair, turn to the professionals from Finch Air Conditioning & Heating to diagnose the fault code and fix the problem to your requirements.
Call us at 281-407-9478 or schedule an appointment online today.