The sump pump float triggers the float switch. If the switch is jammed, often it can be freed manually. If the switch is broken, the switch can be replaced. Inoperable Sump Pump Impeller.

A large float operates a manual switch, automatically turning the unit on when the water reaches a set level. This automatic sump pump will work in sump pump basins 11 inches in diameter or larger.

Integral snap-action float switches are suitable for smaller-diameter sump basins since the switch moves vertically up and down. Tethered float switches may take up more room to allow the switch to ...

If your sump never stops cycling, examine the float switch. If it’s tangled in the power cord or debris, that’s an obvious solution to your problem. If it’s stuck in the “on” or “off ...

THE DFC-2 DUAL FLOAT, PIGGY BACK SUMP PUMP SWITCH features a deluxe controller that monitors pump and power conditions and sounds an alarm when a problem is detected, such as a lack of AC power, or a ...

The Consumer Reports sump pump backup system buying guide covers the types, ... Similar to a battery-powered unit, a float switch activates the pump when water levels in your sump pit rise.

CR tested popular brands of sump pump backup systems to find the ones that will keep your basement ... These systems kick in when the water level rises above your main pump’s float switch, ...

Sump pump battery backups offer other advantages such as a power outage alarm, pump failure alarm and a stuck float switch warning. Another advantage to a sump pump backup system is that it ...

Most sump pumps have a thermal relay switch that will trip if the motor becomes overheated. ... It's important to make certain the pump switch and float-arm assembly move freely.