I have a well and have no water pressure gauge reads 0 and we were using the water about a hour ago and now nothing . I have a tank in the basement which has a pressure switch. This happen before and I hit the breaker and it came back , does not work this time..

Is there a reset on the control box? If the breaker's OK then the next thing I would check is the control box. Does your pump cycle on and off by itself? Turn off the breaker and open up the control box. Are the contacts open or closed? Is this a submirasable pump? Back to you, Tom

Kill the power to the switch, remove the cover and check the contacts. This switch is adjustible so try lower the call point. Turn power back on and visually watch to see if the contacts close. In most switches the contacts are quite visible.