Description
The Lochinvar & A.O. Smith 100170641 is an OEM auto-reset limit switch engineered to provide reliable high-temperature protection for compatible water heaters and boilers. Featuring a broad operating range of 30°F to 210°F, this limit switch continuously monitors system temperature and automatically resets once safe operating conditions are restored — minimizing downtime and reducing the need for manual intervention.
Key Features
- Auto-reset operation for convenient, low-maintenance temperature protection
- Wide temperature sensing range: 30°F to 210°F
- OEM replacement part for Lochinvar and A.O. Smith water heating equipment
- Protects equipment from overheating and thermal damage
- Direct drop-in replacement for fast, straightforward installation
Application
Designed as a direct OEM replacement, the 100170641 limit switch is intended for use in Lochinvar and A.O. Smith water heaters and hydronic heating systems where precise thermal cutout protection is required. Always verify compatibility with your specific unit model before installation.
Specifications
- SKU: 100170641
- Brand: Lochinvar & A.O. Smith
- Type: Auto-Reset Limit Switch
- Temperature Range: 30°F – 210°F







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