When the tank reaches its peak pressure typically at 60 pounds per square inch the switch cuts the electrical power to the water pump.
Pressure tank switch wiring.
Flip the breaker to the pump switch and check it with a voltage sniffer to make sure it s off.
Over time a square d pressure switch can become worn out.
An older pressure switch can lead to issues with your pump.
If your pump isn t switching on or off properly it may well be to do with your square d pressure switch.
A square d pressure switch is what controls the pump.
The air pressure in the well tank when empty of all water must be set to 38 psi or the switch will not operate properly.
Next remove the old switch photo 2 and gauge photo 3.
As the tank is filled the water pressure increases within it.
Water pressure switches in well systems control the amount of water pumped to the system s storage tank.
This method will work for any pump that runs directly off of a pressure.
This switch must be used in conjunction with a well pressure tank.
It will likely be mounted on the outside of your pressure tank.
In this video we show you the best way to a pressure switch for 115v and 230v pumps.
Then disconnect the wiring photo 1.
Wrap the pipe threads with teflon tape and reassemble.
It can be wired 115 volt or 230 volt.
Turns pump on at 40 psi off at 60 psi.