I had strange problem and finally fixed. Last night all was working fine, but when I woke up, I had no water. I went crazy looking at all fuses and panel, but still no power to water pump. Finally, I ...
The drawings indicate that the switches are a two way momentary. Monitor drawings donot show it, but looks as though it has a latching circuit. You should be able to test at the circuit board for inputs and output to pump. I would look for a loose connector, connection or bad switch.