Getting chilly because you’re getting error code 223 from your Lennox® furnace?
This means your furnace’s low pressure switch is open. Due to the issue, your system will not run for your protection.
Depend on the Experts at Service Experts Heating & Air Conditioning to handle fixing this furnace error. Our ACE-certified technicians are among the best in the industry when it comes to understanding and repairing furnace problems.
Your satisfaction is important to our team. That’s why we back our furnace repair* for a year.
How a Low Pressure Switch Works
Pressure switches are an important part of the heating system.
Here’s how your furnace starts after the thermostat initiates the call for heat:
- Your furnace’s control board begins the draft inducer blower motor. This gets rid of combustion gases from the heat exchanger and brings in new gas and air so the burners can ignite.
- When the pressure switch senses that sufficient air is being dragged into the burners, it closes and tells the control board to ignite the furnace.
- Your furnace ignites and heats your house.
A two-stage furnace has a few pressure switches, which allow it to run at various speeds—and use less energy.
What Happens When a Low Pressure Switch Fails
The low pressure switch may be open for a couple reasons.
There could be a:
- Obstructed vent
- Plugged condensate drain
- Cracked hose
There could also be trouble with the switch itself, the inducer or the circuit board.
Your furnace will let you know there’s an issue with a red flash from its indicator light, which it uses to feature error codes. It has this red light to flash code, like Morse code.
You might observe fast flashes or an alternating slow flash as it reiterates a fault code.
Estimated Repair Cost for Furnace Error Code 223
The price to fix your furnace depends on what’s wrong with it and the time it takes to remedy it.
Here are expected replacement costs for several components that could be affected:
- Pressure switch—$40 to $350
- Inducer—$600 to $1,500
- Circuit board—$200 to $600
Call the Experts at Service Experts Heating & Air Conditioning
When you need furnace service, you can trust the professionals at Service Experts Heating & Air Conditioning to work on the fault code and get your heat flowing again.
Call us at 440-252-1375 or schedule an appointment online today.