Fluid Handling is recalling approximately 1,200 McDonnell & Miller series 750 Low Water Cut-Off control units. These safety devices, used on hot water or steam boilers, were manufactured with incorrectly assembled ground and probe wires. The units are black, measuring about 6 inches high, and feature a white label with "Guard Dog" and "McDonnell and Miller" branding. They were sold by wholesale plumbing distributors between July 2014 and August 2014. Consumers should contact the manufacturer immediately for a free inspection and repair or replacement.
The internal ground and probe wires may be incorrectly installed, which can lead to electrical failures that pose a serious risk of fire or explosion. No incidents or injuries have been reported to date.
Contact Fluid Handling/Xylem for a free inspection, repair or free installation of a replacement low water cut-off unit. The firm is contacting purchasers directly.

McDonnell & Miller low water cut-off control for hot water and steam boilers

Date code on the inside of the unit’s chassis
If you or a family member were harmed by this recalled product, you may have legal rights. Consider consulting a consumer protection attorney to understand your options for compensation.
This is general information, not legal advice. Go Backs is not a law firm and does not provide legal services.
AI-Enhanced Content: The summary, action steps, and risk assessment on this page were generated by AI from official government recall data to improve readability. This is not legal or medical advice. Always refer to the official agency sources below for authoritative information.
Sources: CPSC Notice · Raw API Response