switch for home water pump

Sorry, jacrow, can't make out what you're asking. Do you mean the contacts won't close again after opening? Please explain a bit more.

well all of a sudden my water quit runing. so i went to the well house and checked the pressure switch and the points were open, and i took a screw driver and pulled the points closed and the tank filled up. Then the same thing happened again, and again.

thanks

jacrow

Guess you need to fix or replace the switch actuating mechanism (pressure diaphragm or whatever). Rest of the system sounds OK.

Out of interest, what is the pressure switch connected to (ie what pressure is it looking at)?

I'd have thought a float switch would be more appropriate for a tank.

Hey JohnDG - Most municipal water supplies store the water higher than the end users faucets, allowing gravity to provide the pressure.

Home systems store the water below the level of the faucets, thus the well tank has to provide the pressure. It does this using a air bladder inside the tank. By monitoring pressure over level, you ensure a smoother flow in the home, plus a pressure switch is much easier to install since it can be separate from the tank.

thanks for every bodies help.

and you explained the pressure switch correctly

so i held the contacts closed for awhile and now it is working thanks to you and our heavenly father.

it is to cold to be plumbing.Ha ha

thanks

jacrow

Hi jacrow,

There is a float switch (not pressure switch) on your water tank. And It works properly. You can check float switch again: terminal of switch, that you have to connect to C and NO (not NC); second the floats with 1st float for lower limit and 2nd float for upper limit.

If possible you can use "Floatless Level Controller 61F" of OMRON product, that the best solution for conductive liquid level control.

Good luck.

Do you have a gauge on the reserve tank?

Open the air bleed valve till it quits, close it, see what happens. Report back.

Agreed with John, we need a bit more detailed information please. Please resubmit here and we will all be happy to help.

well all of a sudden my water quit runing. so i went to the well house and checked the pressure switch and the points were open, and i took a screw driver and pulled the points closed and the tank filled up. Then the same thing happened again, and again.

thanks

jacrow

Hi, somebody here advised you to use a splendid omron just for your home water pumping system. what do you think about this solution?????

Hi Jacrow - If you are from SA don't worry, the power will be back in 6 - 7 hours time.

I guess you to have a pump and pressure tank system. and the pump is switched with a pressure sensor and relay.

In that case the fault may be anywhere else as well.

Please give more detail of the setup. Including how did it work before?.

well all of a sudden my water quit runing. so i went to the well house and checked the pressure switch and the points were open, and i took a screw driver and pulled the points closed and the tank filled up. Then the same thing happened again, and again.

thanks

jacrow

Check the pressure on your tank. There should be a gauge somewhere near the inlet of the tank.

You may need to manually run the pump long enough to build a minimum pressure before the switch will seal in and the pump runs automatically.

Careful using screwdriver, my pump control switch has a little lever an the side to manually run or shut pump off.

hey mevel123

Thanks for the info-. I hope it works

jacrow

Sounds like it's knackered. Replace it.

Replace the pressure switch. They're not that expensive...figure about $100 if you call the service man. If that doesn't work, come back. It's not worth effort trying to save the pressure switch.

Proviso: it's assumed you have not tweaked/changed the switch open-close (pump contactor make/break) settings by turning the adjustment screws.

Caution: Throw pump circuit breakers to off before removing pressure switch cover.

The system you are talking about is alot like the one I have at home.

2 thing can cause this problem. As mentioned previously the pressure switch could be bad. or it could be simply out of adjustment.

The other is the the pressure tank. (This is where I had my problem)

You will notice a small Schrader valve on the top of your pressure tank, if you take a tire guage and check the pressure here you might find that the air pressure in the tank has dropped due to the cold.

This pressure should be slightly higher than that of your cutout pressure setting which should be about 60psi when the tank is full. So I would put it around 62psi.

Somehow this effects how the pressure switch operates in the cold.

I had our handy well service company come out and fix it.

Course I could be completely bonkers and have it totally backwards.

That's a pretty funny answer!

As an example, the switch is set for 40lbs ->60lbs.

Think of it as a scale for weighing. The switch is like a teeter totter (like on the playground when we were kids)

When the tank is empty, the 40lb end is sitting on the contacts, so when you turn on the power, the pump starts and pumps water into the tank until the trapped air is compressed to 60lbs, and at that point, the tetter totter (switch) tilts and the contacts open.

Then you use open a faucet and the compressed air shoves water through the lines and out the faucet. As it shoves water out the faucet, the pressure in the tank drops. One it drops to 40lbs (the cut IN pressure) the tetter totter tilts and the contacts close and the pump runs again until the air pressure in the tank gets to 60lbs. Then the pump shuts off again and it repeats.

IF you put 62lbs of air pressure in the tank, the pump would never come on. How to fix that? Ah, OPEN a faucet! The water runs out, the pressure drops... to 40lbs and the pump comes on.

Oh, your tank has a separate AIR BAG in it (the air bag is separate from the water)? Ah, if you fill the air bag with 62lbs of air with no water in the tank... then the pump will NEVER turn on because the 62lbs is keeping the contacts open all the time.

On my tank, when it gets water logged, I shut the pump off, open a faucet, pump air into the tank until I hear air coming out of the faucet, close the faucet, put in air until the gauge reads 39lbs (so the pressure will drop to 40lbs and turn on the pump) and turn the power back on.

If you have the separate bag, shut the pump off, open the faucet, let it run until no more water comes out. close faucet, add 39lbs of air, turn on pump.

The air pressure you put in can't be more than the CLOSE CONTACT pressure you have the switch set at or the pump will never come on.

Ken

You pulled the contact points together and they latched and stayed that way until the reserve tank filled to pump shut-off? Or you pulled and held the points together until the reserve tank was "full." Please clarify...because therein probably lies the answer...