The m98 is more expensive than the m53 but both are affordable on any household budget less than 200.
Zoeller m53 switch failure.
Tubing to pressure switch plugged.
When no water is delivered check prime of pump and well piping.
The switch would get stuck in the high position.
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.
Pump will not shut off debris under float assembly float bound by basin sides or other switch damaged or out of adjustment.
Clean or replace if plugged.
Remove tubing and blow through it.
Model 53 sump effluent or dewatering pumps fm2958 0720 supersedes.
While both sump pumps are made by zoeller there are a few key differences that set them apart.
Replace switch if defective.
The biggest issue consumers have with the zoeller m53 mighty mate submersible sump pump 1 3 hp is its float switch.
Oeerus o e u od ouse a 100 factory tested model 53 features.
Zoeller pumps are quite good sturdy and quiet but unfortunately have many well known switch issues.
Purchased this replacement kit for my zoeller m53.
Short demo showing replacing the float switch on a zoeller sump pump.
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.
Float switch tether length too short check valve stuck open or none installed in long distance line overload open bidding sump pit too small.
While the rest of the machine is built to withstand virtually any kind of punishment you can think to throw its way the float switch tends to flame out relatively quickly.
Examine points and other parts of switch for defects.
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.