69M38 Lennox 105-135F AUTO Limit Switch

Replaces: 69M3801

69M38 Lennox 105–135°F Auto Limit Switch

A dependable OEM‑grade replacement designed to protect your furnace and maintain safe, efficient operation.

⭐ Product Overview

The 69M38 Lennox 105–135°F Auto Limit Switch is a temperature‑sensing safety control used in a wide range of Lennox heating systems. This automatic reset limit switch monitors internal furnace temperatures and opens the circuit if overheating occurs, preventing heat exchanger damage and ensuring safe system performance.

Engineered for reliability, this switch restores normal operation automatically once temperatures return to a safe range — making it an essential component for consistent furnace protection.

🔄 Replaces

• 69M3801

🛠️ Key Features

• Automatic reset for continuous protection

• Factory‑specified temperature range: 105°F–135°F

• Helps prevent overheating and system shutdowns

• OEM‑grade performance and fit

• Durable construction for long service life

📦 Common Applications

• Lennox furnaces and heating units requiring a 105–135°F auto limit switch

• Routine maintenance, safety repairs, and system tune‑ups

🧰 Why Choose This Limit Switch

Technicians rely on this switch for its accuracy, durability, and consistent performance. Whether you’re replacing a failed limit or performing preventative maintenance, the 69M38 ensures your furnace operates safely and efficiently.

If you want, I can also generate:

• A shorter retail‑style version

• A long‑form SEO landing page

• A technician‑binder description

• A cross‑sell block for related limits, rollouts, or blower switches