Lochinvar & A.O. Smith 100320791 Low Water Cut-Off (LWCO)

Description

Lochinvar & A.O. Smith 100320791 Low Water Cut-Off (LWCO)

The Lochinvar & A.O. Smith 100320791 is an OEM Low Water Cut-Off (LWCO) designed to protect hydronic boilers from the dangers of low-water conditions. When water levels drop below the minimum safe threshold, this control automatically shuts down the burner, preventing overheating, heat exchanger damage, and potentially catastrophic boiler failure. Engineered to Lochinvar & A.O. Smith’s exacting standards, this LWCO is the factory-specified replacement for compatible boiler models.

Key Features

• OEM Low Water Cut-Off (LWCO) designed for Lochinvar & A.O. Smith boiler systems
• Automatically shuts off the burner when water falls below a safe operating level
• Protects heat exchangers and boiler components from dry-fire damage
• Direct OEM replacement for precise fit and reliable performance
• Supports safe, code-compliant boiler operation
• Built to withstand the demands of residential and commercial hydronic heating applications

Application

• Compatible with select Lochinvar & A.O. Smith boiler models — verify compatibility with your equipment’s documentation before ordering
• Suitable for hydronic heating systems requiring LWCO protection

Why Choose the OEM LWCO?

Using a genuine OEM Low Water Cut-Off ensures your boiler operates within manufacturer specifications and maintains warranty compliance. Aftermarket substitutes may not provide the same level of precision or reliability. The 100320791 is the correct factory part for compatible Lochinvar & A.O. Smith units, giving technicians and building owners confidence in every installation.