Getting cold because you’re seeing 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 Peitz Service Experts to deal with repairing this furnace error. Our ACE-certified technicians are among the elite in the industry when it comes to understanding and repairing furnace troubles.
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 a necessary part of the heating operation.
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 fire.
- When the pressure switch senses that a suitable amount of air is being brought into the burners, it closes and signals the control board to ignite the furnace.
- Your furnace ignites and heats your home.
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 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 tell you 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 see fast flashes or an alternating slow flash as it replays a fault code.
Estimated Repair Cost for Furnace Error Code 223
The cost to fix your furnace depends on the issue it has and how long 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 Peitz Service Experts
When you require furnace service, you can lean on the professionals at Peitz Service Experts to take care of the fault code and get your heat moving again.
Call us at 605-223-0307 or schedule an appointment online today.