Getting cold because you’re noticing error code 223 from your Lennox® furnace?
This indicates your furnace’s low pressure switch is open. Due to the failure, your system will not run for your protection.
Turn to the Experts at Service Experts Heating & Air Conditioning to handle mending this furnace error. Our ACE-certified technicians are among the brightest 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 process.
Here’s how your furnace works after the thermostat begins to call for heat:
- Your furnace’s control board begins 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 ignite.
- When the pressure switch senses that enough 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 more than one pressure switches, which allow it to run at multiple speeds—and be more efficient.
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 a problem with the switch itself, the inducer or the circuit board.
Your furnace will let you know there’s a problem 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 replays a fault code.
Estimated Repair Cost for Furnace Error Code 223
The price to fix your furnace depends on the issue it has and the time it takes to fix 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 require furnace service, you can lean on the professionals at Service Experts Heating & Air Conditioning to work on the fault code and get your heat working again.
Call us at 330-236-4793 or schedule an appointment online today.