Description
The Weil McLain 383-600-288 is a genuine OEM replacement Circulator Board and Probe Low Water Cut-Off (LWCO) assembly designed specifically for Weil McLain SlimFit boilers. This integrated control component combines circulator management with critical low water protection in a single, purpose-built assembly, ensuring your boiler operates safely and efficiently.
Product Overview
The SlimFit Circulator Board and Probe LWCO is engineered to work seamlessly within the Weil McLain SlimFit boiler platform. The low water cut-off probe continuously monitors system water levels and automatically shuts down boiler operation if water drops below a safe threshold — protecting the heat exchanger and extending equipment life. The integrated circulator board manages pump operation to maintain proper hydronic flow throughout the system.
Key Features
- Genuine Weil McLain OEM replacement part (SKU: 383-600-288)
- Designed exclusively for Weil McLain SlimFit boiler series
- Integrated circulator board and probe LWCO in a single assembly
- Low water cut-off probe provides automatic boiler shutdown protection
- Helps prevent heat exchanger damage caused by low water conditions
- Direct drop-in replacement for simplified installation
- Supports reliable hydronic system circulator control
Application
- Compatible with: Weil McLain SlimFit boiler series
- Function: Circulator board control and low water cut-off safety
- Replacement type: OEM direct replacement
Why Choose OEM Parts?
Using genuine Weil McLain replacement components ensures compatibility, maintains warranty compliance, and delivers the performance reliability your system was designed for. The 383-600-288 is the factory-specified part for SlimFit boiler circulator and LWCO functions, eliminating guesswork during service calls.







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