Getting cold 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 function for your protection.
Trust the Experts at Peachtree Service Experts to handle repairing this furnace error. Our ACE-certified technicians are among the elite in the industry when it comes to recognizing and repairing furnace troubles.
Your satisfaction is important to our business. 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 system.
Here’s how your furnace acts after the thermostat initiates the call for heat:
- Your furnace’s control board begins the draft inducer blower motor. This exhausts combustion gases from the heat exchanger and brings in new gas and air so the burners can ignite.
- When the pressure switch senses that a suitable amount of air is being pulled into the burners, it closes and tells the control board to ignite the furnace.
- Your furnace ignites and heats your home.
A two-stage furnace has a few pressure switches, which help it to run at multiple speeds—and use less energy.
What Happens When a Low Pressure Switch Fails
The low pressure switch may be open for several reasons.
There could be a:
- Blocked 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 exhibit error codes. It has this red light to flash code, like Morse code.
You might notice 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 Peachtree Service Experts
When you have to have furnace service, you can trust the professionals at Peachtree Service Experts to work on the fault code and get your heat moving again.
Call us at 678-235-9699 or schedule an appointment online today.