Getting cold because you’re seeing error code 223 from your Lennox® furnace?
This is telling you your furnace’s low pressure switch is open. Due to the issue, your system will not function for your protection.
Trust the Experts at Stallion Heating Plumbing Air Conditioning to take care of repairing this furnace error. Our ACE-certified technicians are among the best in the industry when it comes to recognizing and repairing furnace problems.
Your satisfaction is critical to our team. That’s why we back our furnace repair* for a year.
How a Low Pressure Switch Works
Pressure switches are a necessary part of the heating operation.
Here’s how your furnace acts after the thermostat begins to call for heat:
- Your furnace’s control board begins the draft inducer blower motor. This exhausts combustion gases from the heat exchanger and sucks in new gas and air so the burners can start.
- When the pressure switch senses that a suitable amount of air is being dragged into the burners, it closes and signals the control board to ignite the furnace.
- Your furnace ignites and heats your space.
A two-stage furnace has several pressure switches, which permit it to run at different speeds—and use energy more efficiently.
What Happens When a Low Pressure Switch Malfunctions
The low pressure switch may be open for a variety reasons.
There could be a:
- Closed off vent
- Stopped condensate drain
- Cracked hose
There could also be trouble with the switch itself, the inducer or the circuit board.
Your furnace will show you there’s a problem with a red flash from its indicator light, which it uses to display 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 repeats a fault code.
Estimated Repair Cost for Furnace Error Code 223
The cost to fix your furnace depends on the issue it has and the time it takes to remedy it.
Here are average 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 Stallion Heating Plumbing Air Conditioning
When you need furnace service, you can call on the professionals at Stallion Heating Plumbing Air Conditioning to take care of the fault code and get your heat flowing again.
Call us at 215-278-9690 or schedule an appointment online today.