*
Changed out bad submersible pump and press switch. Installed new 3/4 hp
3wire pump,150′ 1″ ploy ,new press switch.
Problem; Pump seems to run intermittently-contacts closed on switch,showing current to pump,power at box at well seal. Can feel/hear pump run/stop with current showing.
Made good tight shrink tube connections,secured wire w/slack and wraps of tape every 10’for50′.
Sounds like bad pump or…….?
Also some info for setting press tank/bladder as I tried to balance pressures before I found pump problem.
Any help is much appreciated
Thanx GEO
Discussion Forum
Discussion Forum
Up Next
Video Shorts
Featured Story
The best tool for straight, splinter-free cuts is made even better without a cord.
Featured Video
Video: Build a Fireplace, Brick by BrickHighlights
"I have learned so much thanks to the searchable articles on the FHB website. I can confidently say that I expect to be a life-long subscriber." - M.K.
Replies
*
You don't mention a control box so I have to say this....the pressure switch controls the power to the control box which in turn controls the power to the pump motor.....right? That said, are the connections correct in the control box? Are the common, the start winding and running winding wires from the pump connected to the correct terminals in the control box?
Not sure what you mean by runs intermittently - do you mean it 'short cycles'? Turns on, quickly builds up pressure then shuts off, then when a faucet is opened quickly loses pressure and turns on again? If so you have a tank problem. Press on the center core of the schroeder valve on the top of the tank. If you get water, you have a ruptured bladder and the tank needs to be replaced. If all you get is air, try setting the proper air pressure.
Here's how - watch the pressure gauge as the pump cycles on and off. The cut-in pressure should be 30 - 40 psi and the cut-out pressure about 20 psi higher. (If you bought a new pressure switch, it should have been pre-set at 30-50 or 40-60) Note the cut-in pressure, turn off the power to the pump and drain all the water out of the tank. Now set the air pressure above the bladder to 2 psi less than the pump cut-in pressure. Turn on the power to the pump and check the system for proper operation. Your tank should be large enough to allow the pump to run between 1 and 2 minutes between cut-in and cut-out.
*Allaround,thanx for response.3/4hp-230v 5.5amp As to the wiring;3wire pump-2 hot/1gndno control box,press switch to pump. wired as follows; from dbl pole breaker to service switch located at press tank,to line side of pump switch. from load side of pump switch to water tite box at well head,properly bonded,with wire nut conn to submersible pump wiring[150'] to pump. As I mentioned before when the press switch contacts are closed I read correct current across the connections and have current at the well head conn, however the pump seems to have a mind of it's own and runs when it wants to. I should mention that prior to connecting to the house,I ran the pump to be sure of no "brown water/mud" that the pump might have picked up on it's way down and to be sure of the gpm. I've checked all conn and because the breaker is not tripping that there are no wiring shorts. Forgive the long wind but I've installed a few pumps and this one is wierd! Thanx again GEO
*
Changed out bad submersible pump and press switch. Installed new 3/4 hp
3wire pump,150' 1" ploy ,new press switch.
Problem; Pump seems to run intermittently-contacts closed on switch,showing current to pump,power at box at well seal. Can feel/hear pump run/stop with current showing.
Made good tight shrink tube connections,secured wire w/slack and wraps of tape every 10'for50'.
Sounds like bad pump or.......?
Also some info for setting press tank/bladder as I tried to balance pressures before I found pump problem.
Any help is much appreciated
Thanx GEO