Lennox 20J83 Limit Switch

135-165F AUTO Limit Switch

20J83 is identical to 20J8301

Lennox 20J83 Limit Switch (Model 20J8301)

The Lennox 20J83 (Model 20J8301) is an official OEM Limit Switch designed to ensure safe and efficient operation of your Lennox HVAC system. This 135–165°F automatic limit control switch helps regulate furnace temperature by actuating at 165°F and automatically resetting at 135°F, preventing overheating and protecting your system components.

Engineered with precision and reliability, the Lennox 20J83 Limit Switch is a single-pole, single-throw (SPST) control featuring the Lennox Red Dot indicator for easy identification. It’s a direct-fit replacement part for compatible Lennox furnaces, ensuring consistent and dependable performance.

Key Features:

• Genuine Lennox OEM limit switch for dependable performance

• Actuation Temperature: 165°F

• Reset Temperature: 135°F

• Type: SPST (Single Pole, Single Throw)

• Function: Automatic reset limit control

• Helps prevent furnace overheating and ensures system safety

• Easy to install and designed for long-lasting durability

Product Specifications:

• Brand: Lennox

• Catalog Number: 20J83

• Model/Part Number: 20J8301

• Type: Limit Control

• Temperature Range: 135°F reset / 165°F actuation

• UPC / EAN: 223973

• Base Unit of Measure: Each

Ensure safe, reliable temperature control with the Lennox 20J83 (20J8301) Limit Switch—a trusted OEM replacement part that keeps your heating system operating efficiently and securely.

Safety Info:
California Proposition 65 Warning – This product may contain materials known to the State of California to cause cancer or reproductive harm.