replaced pressure tank no water

I have just replaced the pressure tank and all the plumbing around it (new fittings, pipe(pvc), pressure switch, gauge) everything was put back like it was. 20gal tank, 20-40 psi switch, the pump is a sump pump ( I guess it's below ground) I don't know if it is a shallow well or deep. There is some water in the pipe leading to the pump.

All I can hear is a faint or slight humm in the electic box that connects the pressure switch and the pump.

This all started when the diaphram leaked down and the pump short cycled. I hope I didn't burn the pump up!!

any ideas

 

Hi okeliminator,
-please check some items ; 20 40 pressure switch ? -this is fairly rare, what makes you think it is. Should be a 30/50- 9013 FSG2. Please post what it calls it on box, or inside lid.
Did you equalise tank air to the system requirement. Most tanks come pre-charged to 45 psi.
The electric box that connects pressure switch to pump. (This is the control box,) with power off, remove the top and check the base of the large capacitor. There is a 1/4 cutout hole in the lid of cap. Is the material in hole flat and beige or bulged up and brown ? Does the base look clean and dry or greasy ?
Do you have or can borrow ;good ohmmeter, clamp on ammeter?

Do it Right -Do it once.

 

Thanks NOMIND

it is a 20-40 switch I did not realize it but I grabbed the wrong one should be a 30-50.

I equalized the tank to 28psi

Upon further inspection of the control box, the capacitor looks like it has blown some black stuff out close to the center where the terminals are. Humm don't think it should look like that do you? can I buy the capacitor or di I have to buy the box as a unit?

Thanks for the reply

Joe

 

While capacitors will go bad from time to time, there generally is a reason why they do so. A start or run capacitor will blow when there is a problem with the start or run windings in a pump motor, usually a electrical short.
Unless the problem is diagnosed, replacing the capacitor or entire control box may be a waste of time and money. If you don't have access to the proper diagnostic equipment, call an electrician or pump person who does. It may be worth it.
Ron

 

Thanks PUMPMAN
Do you think the short cycleing could have got it hot enough to blow?

 

Hi okeliminator,
- Yes, the short cycling could have (and frequently does) cause this cap to blow. I was about to tell you how to diagnose the fault when I know if you have an ohmmeter and clamp -on ammeter.

Do it Right -Do it once.