Fixing Error Code 223 on Your Lennox¨ Furnace
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 Service Experts to deal with fixing this furnace error. Our ACE-certified technicians are among the best in the industry when it comes to understanding 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 an essential part of the heating system.
Here’s how your furnace works after the thermostat initiates the call for heat:
- Your furnace’s control board begins the draft inducer blower motor. This pushes out combustion gases from the heat exchanger and sucks in new gas and air so the burners can ignite.
- When the pressure switch senses that sufficient air is being dragged 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 more than one pressure switches, which help it to run at different speeds—and use less energy.
What Happens When a Low Pressure Switch Acts Up
The low pressure switch may be open for several reasons.
There could be a:
- Closed off vent
- Plugged condensate drain
- Cracked hose
There could also be a problem with the switch itself, the inducer or the circuit board.
Your furnace will show you 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 reiterates a fault code.
Estimated Repair Cost for Furnace Error Code 223
The expense to fix your furnace depends on the issue it has and the time it takes to repair 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
When you require furnace service, you can lean on the professionals at Service Experts to work on the fault code and get your heat moving again.
Call us at (866) 963-7996 or schedule an appointment online today.
