Lennox 85C23 Pressure Switch

The Lennox 85C23 Low Pressure Switch is an essential safety component engineered for Lennox HVAC equipment, including central air conditioners and heat pumps. This OEM pressure switch, also identified as part number 85C2301, provides critical system protection by monitoring refrigerant levels and internal pressures. When a low-pressure condition is detected, the switch interrupts the electrical circuit to prevent compressor damage and ensure the longevity of the unit. As a genuine Lennox replacement part, it guarantees exact fitment and factory-specified performance for technicians performing maintenance or emergency repairs.

Designed for professional-grade reliability, the 85C23 features a robust construction capable of withstanding the high-cycle demands of commercial and residential split systems. Integrating this HVAC pressure sensor helps resolve common system lockouts and error codes related to insufficient airflow or refrigerant loss. Its compact design allows for seamless mounting within Lennox packaged units and RTUs without requiring field modifications, making it the standard choice for contractors looking to restore original equipment efficiency.

• Direct OEM Replacement: Perfect compatibility with hardware originally using the 85C23 or 85C2301 part numbers.
• Compressor Protection: Automatically shuts down the system during low-refrigerant events to prevent permanent mechanical failure.
• Broad Compatibility: Suitable for a wide range of Lennox heat pumps, furnaces, and central air conditioning models.
• Durable Infrastructure: Engineered to handle harsh environmental conditions and pressure fluctuations common in high-performance HVAC systems.

• Is the Lennox 85C23 compatible with the 85C2301? Yes, the 85C23 is identical in specification and application to the 85C2301.
• Can this switch be used in both heating and cooling applications? This component is designed for Lennox HVAC systems including air conditioners and heat pumps where low-pressure monitoring is required.
• What does a "stuck open" pressure switch indicate? A switch that remains open usually signifies a low-pressure state, a blocked suction line, or a mechanical failure within the switch itself, often requiring a diagnostic pressure test.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.