Feeling a chill because you’re noticing error code 223 from your Lennox® furnace?
This indicates your furnace’s low pressure switch is open. Due to the malfunction, your system will not run for safety reasons.
Depend on the Experts at Service Experts Heating & Air Conditioning to handle mending this furnace error. Our ACE-certified technicians are among the brightest in the industry when it comes to diagnosing and repairing furnace troubles.
Your satisfaction is critical to us. 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 works 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 pulls in new gas and air so the burners can ignite.
- When the pressure switch senses that sufficient 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 more than one pressure switches, which help it to run at various speeds—and use less energy.
What Happens When a Low Pressure Switch Acts Up
The low pressure switch may be open for a couple reasons.
There could be a:
- Obstructed vent
- Clogged 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 a problem with a red flash from its indicator light, which it uses to display 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 replays a fault code.
Estimated Repair Cost for Furnace Error Code 223
The price to fix your furnace depends on the root problem and how long 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 take care of the fault code and get your heat flowing again.
Call us at 587-404-0790 or schedule an appointment online today.