Getting cold because you’re getting error code 223 from your Lennox® furnace?
This indicates your furnace’s low pressure switch is open. Due to the issue, your system will not work for safety reasons.
Depend on the Experts at Service Experts Heating & Air Conditioning to handle repairing this furnace error. Our NATE-certified technicians are among the best in the industry when it comes to diagnosing and repairing furnace troubles.
Your satisfaction is important to our business. That’s why we back our furnace repair work in Columbus with a 100% Satisfaction Guarantee* for a year.
How a Low Pressure Switch Works
Pressure switches are a necessary part of the heating operation.
Here’s how your furnace works after the thermostat starts to 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 enough air is being brought into the burners, it closes and triggers the control board to ignite the furnace.
- Your furnace ignites and heats your space.
A two-stage furnace has a few pressure switches, which help it to run at different speeds—and be more efficient.
What Happens When a Low Pressure Switch Malfunctions
The low pressure switch may be open for several reasons.
There could be a:
- Obstructed vent
- Plugged condensate drain
- Cracked hose
There could also be an issue 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 exhibit 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 price to fix your furnace depends on the root problem and the hours it takes to fix it.
Here are the usual 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 handle the fault code and get your heat moving again.
Call us at 614-334-3192 or schedule an appointment online today.