Fluid Handling Recalls Low Water Cut-Off Control Units for Hot Water or Steam Boilers Due to Fire and Explosion Hazards (Recall Alert)

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.. Recalled by Fluid Handling LLC, of Morton Grove, Ill., a division of Xylem Inc.. Units affected: About 1,200.

The ground wire and probe wires could be incorrectly assembled in the units by the manufacturer, posing fire and explosion hazards.

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.

This recall was issued by the CPSC on October 9, 2014. Severity: Moderate. Recall number: 15703.