Description
Weil McLain LWCO Control Module — 381-330-039
The Weil McLain 381-330-039 is a factory-engineered Low Water Cut-Off (LWCO) Control Module designed as a direct OEM replacement for compatible Weil McLain boiler systems. This control module serves as a critical safety component, monitoring boiler water levels and automatically cutting off burner operation whenever water drops below a safe threshold — protecting the heat exchanger, boiler vessel, and connected components from damage caused by dry-firing.
Key Features
- OEM Weil McLain replacement LWCO control module
- Monitors boiler water level to prevent low-water dry-fire conditions
- Automatically interrupts burner operation upon detection of unsafe water levels
- Engineered for precise compatibility with applicable Weil McLain boiler models
- Supports reliable, long-term boiler system safety and performance
- Direct drop-in replacement for simplified installation
Why Choose an OEM Weil McLain Control Module?
Using a genuine Weil McLain LWCO control module ensures your boiler operates within the manufacturer’s original design specifications. Third-party substitutes may not provide the same level of accuracy or compatibility, potentially voiding warranties or compromising system safety. The 381-330-039 is the correct part to maintain peak protection and operational integrity.
Application
- Compatible with select Weil McLain residential and light commercial boiler systems
- Ideal for service technicians performing preventive maintenance or emergency replacement
- Suitable for hydronic heating systems requiring LWCO safety controls
Ordering Information
- Brand: Weil McLain
- SKU / Part Number: 381-330-039
- Component Type: LWCO Control Module







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