Getting cold because you’re noticing error code 223 from your Lennox® furnace?
This means your furnace’s low pressure switch is open. Due to the malfunction, your system will not function for your protection.
Turn to the Experts at Service Experts Heating & Air Conditioning to handle fixing this furnace error. Our NATE-certified technicians are among the elite in the industry when it comes to diagnosing and repairing furnace issues.
Your satisfaction is essential to our team. That’s why we back our furnace repair work in Gainesville with a 100% Satisfaction Guarantee* for a year.
How a Low Pressure Switch Works
Pressure switches are an essential part of the heating operation.
Here’s how your furnace starts 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 sucks in new gas and air so the burners can start.
- 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 several pressure switches, which permit it to run at various speeds—and use energy more efficiently.
What Happens When a Low Pressure Switch Fails
The low pressure switch may be open for a variety reasons.
There could be a:
- Obstructed vent
- Stopped condensate drain
- Cracked hose
There could also be trouble with the switch itself, the inducer or the circuit board.
Your furnace will tell you there’s something wrong 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 observe fast flashes or an alternating slow flash as it repeats a fault code.
Estimated Repair Cost for Furnace Error Code 223
The expense to fix your furnace depends on the root problem and the hours it takes to fix 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 Service Experts Heating & Air Conditioning
When you have to have furnace service, you can lean on the professionals at Service Experts Heating & Air Conditioning to take care of the fault code and get your heat moving again.
Call us at 352-414-4006 or schedule an appointment online today.