This recall has not yet been classified by risk level.
Fluid Handling Recalls Low Water Cut-Off Control Units for Hot Water or Steam Boilers Due to Fire and Explosion Hazards (Recall Alert)
What You Should Do
Stop using this product immediately. Do not consume, use, or distribute it.
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. Options: Replace, Repair
Affected Products
This recall involves McDonnell and Miller series 750 Low Water Cut-Off control units, which in connection with a water level sensor, are used as a primary or secondary safety control on hot water or steam boilers to signal the boiler to provide protection in low water conditions. The unit is mounted on the outside of a boiler, generally near the boiler's main electrical panel. They are black and measure about 6 inches high x 5 inches wide x 2 1/2 inches deep. The units have a green LED "On" light, a red LED "Low Water" light and test and manual reset buttons on the top. "McDonnell and Miller," "Guard Dog," "Low Water Cut-Off" and model numbers 750-MT-120, 751-MT-120, 751P-MT-120 or 752P-MT-24 are printed on a white label on the outside of the unit. Date codes G41 or H41 are inked on the inside back plate.
Why Was This Recalled?
The ground wire and probe wires could be incorrectly assembled in the units by the manufacturer, posing fire and explosion hazards.
Where Was This Sold?
Distribution information not available.
About Fluid Handling LLC, of Morton Grove, Ill., a division of Xylem Inc.
Fluid Handling LLC, of Morton Grove, Ill., a division of Xylem Inc. has 1 total recall tracked by RecallDetector.
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Data sourced from the CPSC. Last updated March 26, 2026. View original report