
Lennox 60L03 Pressure Switch
The Lennox 60L03 Pressure Switch is a critical safety component designed for precise combustion air monitoring in Lennox heat pumps and furnaces. This OEM Lennox part is factory-set to a .80" wc setpoint, ensuring the inducer motor establishes proper static pressure before allowing the ignition sequence to proceed. As a Single Pole Single Throw (SPST) normally open switch, it features a standard 1/4" barb connection for seamless integration with existing pneumatic tubing. Built with a durable aluminum housing and copper contacts, the 60L03 pressure sensor is engineered to withstand the thermal cycling and vibration inherent in high-efficiency HVAC cabinets, maintaining a reliable electrical circuit at 125VAC.
For technicians in the field, this switch serves as a direct 60L0301 replacement for various Allied, Armstrong, and Ducane models. When diagnosing ignition failure or furnace short cycling, verifying the .80" water column trip point is essential. The 1/4" hose barb prevents vacuum leaks, while the compact footprint simplifies installation in tight burner compartments. Utilizing genuine Lennox HVAC parts ensures that the system operates within original manufacturer specifications, protecting the heat exchanger from improper venting conditions and ensuring long-term operational stability for your clients.
Key Benefits for Contractors- Precise .80" WC Setpoint: Specifically calibrated for Lennox furnace troubleshooting and safety compliance.
- Direct OEM Compatibility: Replaces Lennox 60L03 and associated part numbers in Allied and Ducane equipment without bracket modification.
- Rugged Build Quality: Features 15A rated copper contacts and an aluminum body for superior resistance to oxidation.
- Standard Pneumatic Interface: The 1/4" barb connection ensures a tight seal with standard silicone or rubber pressure tubing.
What are the symptoms of a failing Lennox 60L03 switch?
A faulty switch typically results in the inducer motor running continuously without the igniter glowing, or a specific pressure switch stuck open error code on the integrated furnace control board.
Can I use a universal pressure switch instead of the 60L03?
While universal kits exist, using the genuine Lennox 60L0301 is recommended to ensure the .80" wc setpoint matches the inducer's CFM requirements exactly, preventing nuisance trips or unsafe combustion.
How do I test the continuity of this SPST switch?
With power disconnected and a manometer applied to simulate .80" wc of vacuum, use a multimeter to check for 0 ohms across the terminals; the switch should remain open (infinite resistance) until the setpoint is reached.
This item is not eligible for free shipping.
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.
Lennox 60L03 Pressure Switch
The Lennox 60L03 Pressure Switch is a critical safety component designed for precise combustion air monitoring in Lennox heat pumps and furnaces. This OEM Lennox part is factory-set to a .80" wc setpoint, ensuring the inducer motor establishes proper static pressure before allowing the ignition sequence to proceed. As a Single Pole Single Throw (SPST) normally open switch, it features a standard 1/4" barb connection for seamless integration with existing pneumatic tubing. Built with a durable aluminum housing and copper contacts, the 60L03 pressure sensor is engineered to withstand the thermal cycling and vibration inherent in high-efficiency HVAC cabinets, maintaining a reliable electrical circuit at 125VAC.
For technicians in the field, this switch serves as a direct 60L0301 replacement for various Allied, Armstrong, and Ducane models. When diagnosing ignition failure or furnace short cycling, verifying the .80" water column trip point is essential. The 1/4" hose barb prevents vacuum leaks, while the compact footprint simplifies installation in tight burner compartments. Utilizing genuine Lennox HVAC parts ensures that the system operates within original manufacturer specifications, protecting the heat exchanger from improper venting conditions and ensuring long-term operational stability for your clients.
Key Benefits for Contractors- Precise .80" WC Setpoint: Specifically calibrated for Lennox furnace troubleshooting and safety compliance.
- Direct OEM Compatibility: Replaces Lennox 60L03 and associated part numbers in Allied and Ducane equipment without bracket modification.
- Rugged Build Quality: Features 15A rated copper contacts and an aluminum body for superior resistance to oxidation.
- Standard Pneumatic Interface: The 1/4" barb connection ensures a tight seal with standard silicone or rubber pressure tubing.
What are the symptoms of a failing Lennox 60L03 switch?
A faulty switch typically results in the inducer motor running continuously without the igniter glowing, or a specific pressure switch stuck open error code on the integrated furnace control board.
Can I use a universal pressure switch instead of the 60L03?
While universal kits exist, using the genuine Lennox 60L0301 is recommended to ensure the .80" wc setpoint matches the inducer's CFM requirements exactly, preventing nuisance trips or unsafe combustion.
How do I test the continuity of this SPST switch?
With power disconnected and a manometer applied to simulate .80" wc of vacuum, use a multimeter to check for 0 ohms across the terminals; the switch should remain open (infinite resistance) until the setpoint is reached.
This item is not eligible for free shipping.
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.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Lennox 60L03 Pressure Switch is a critical safety component designed for precise combustion air monitoring in Lennox heat pumps and furnaces. This OEM Lennox part is factory-set to a .80" wc setpoint, ensuring the inducer motor establishes proper static pressure before allowing the ignition sequence to proceed. As a Single Pole Single Throw (SPST) normally open switch, it features a standard 1/4" barb connection for seamless integration with existing pneumatic tubing. Built with a durable aluminum housing and copper contacts, the 60L03 pressure sensor is engineered to withstand the thermal cycling and vibration inherent in high-efficiency HVAC cabinets, maintaining a reliable electrical circuit at 125VAC.
For technicians in the field, this switch serves as a direct 60L0301 replacement for various Allied, Armstrong, and Ducane models. When diagnosing ignition failure or furnace short cycling, verifying the .80" water column trip point is essential. The 1/4" hose barb prevents vacuum leaks, while the compact footprint simplifies installation in tight burner compartments. Utilizing genuine Lennox HVAC parts ensures that the system operates within original manufacturer specifications, protecting the heat exchanger from improper venting conditions and ensuring long-term operational stability for your clients.
Key Benefits for Contractors- Precise .80" WC Setpoint: Specifically calibrated for Lennox furnace troubleshooting and safety compliance.
- Direct OEM Compatibility: Replaces Lennox 60L03 and associated part numbers in Allied and Ducane equipment without bracket modification.
- Rugged Build Quality: Features 15A rated copper contacts and an aluminum body for superior resistance to oxidation.
- Standard Pneumatic Interface: The 1/4" barb connection ensures a tight seal with standard silicone or rubber pressure tubing.
What are the symptoms of a failing Lennox 60L03 switch?
A faulty switch typically results in the inducer motor running continuously without the igniter glowing, or a specific pressure switch stuck open error code on the integrated furnace control board.
Can I use a universal pressure switch instead of the 60L03?
While universal kits exist, using the genuine Lennox 60L0301 is recommended to ensure the .80" wc setpoint matches the inducer's CFM requirements exactly, preventing nuisance trips or unsafe combustion.
How do I test the continuity of this SPST switch?
With power disconnected and a manometer applied to simulate .80" wc of vacuum, use a multimeter to check for 0 ohms across the terminals; the switch should remain open (infinite resistance) until the setpoint is reached.
This item is not eligible for free shipping.
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.












