Weil McLain 383-600-069 Low Water Cutoff Kit for WM97+ Ultra and SlimFit Boilers

The Weil McLain 383-600-069 is a critical safety component designed to protect gas-fired boilers from dangerous low water conditions. This low water cutoff (LWCO) kit is specifically engineered for Weil McLain WM97+ and Ultra Commercial/SlimFit boiler models, including the WM97+ 70, 110, and 155 series.

Essential Safety Protection:

• Automatically shuts down the burner when water level drops below safe operating levels
• Prevents dry-firing conditions that can cause severe boiler damage or failure
• Monitors water level continuously to protect heating surfaces from overheating
• Helps prevent costly repairs and extends boiler service life

Compatible Models:

• Weil McLain WM97+ models 70, 110, and 155
• Ultra Commercial boilers
• SlimFit series boilers

This replacement LWCO kit (part number 383-600-069) supersedes previous part number 571-100-006 and features the Taco LTR0243N-S1 low water cutoff assembly. As one of the most important safety devices on any boiler system, the LWCO requires regular maintenance and periodic testing to ensure proper operation. Professional installation by a qualified technician is recommended to ensure correct setup and reliable protection of your boiler investment.