Zoeller M53 Switch Failure

Pump will not shut off debris under float assembly float bound by basin sides or other switch damaged or out of adjustment.

Zoeller m53 switch failure.

Short demo showing replacing the float switch on a zoeller sump pump. That said a supply house near me carries little giant chinese made zoeller and hydromatic copies and claims that their m53 copy has a better seal around the float arm. Float switch tether length too short check valve stuck open or none installed in long distance line overload open bidding sump pit too small. With the higher cost the m98 provides a higher flow rate of 72 gallons of water per hour thanks to the 1 2 hp motor compared to 43 gph and 1 3 hp on the m53.

Model 53 sump effluent or dewatering pumps fm2958 0720 supersedes. When no water is delivered check prime of pump and well piping. Remove tubing and blow through it. The switch would get stuck in the high position.

M53 sump pump repair cap and switch assembly 004702 zoeller switch part no 004892 with ur zone screws 4 stainless steel cap mounting 5 0 out of 5 stars 1 68 97 68. Tubing to pressure switch plugged. Arcing may have caused switch contacts to weld together in closed position. Clean or replace if plugged.

I purchased this kit a year after installing my m53 when it started behaving weirdly. The biggest issue consumers have with the zoeller m53 mighty mate submersible sump pump 1 3 hp is its float switch. The constant expansion and contraction of the rubber in the grommet around the float arm causes it to wear faster and once you get water in the switch housing it s going to fail. Oeerus o e u od ouse a 100 factory tested model 53 features.

The m98 is more expensive than the m53 but both are affordable on any household budget less than 200. Purchased this replacement kit for my zoeller m53. Zoeller pumps are quite good sturdy and quiet but unfortunately have many well known switch issues. Examine points and other parts of switch for defects.