Take a look at this thread.
I have a 265 ft 1.5 HP submersible well pump with bladder tank. System is about 10 yrs old. Twice now we have been using water and all of a sudden the flow stops and then starts up again. No sputtering or air. Last time I ran out to the well house when the water stopped but the pump was already running. I did notice maybe a 10 second delay from when the pressure switch clicked to when I heard the pump energize. The pressure switch is new, 40-60 psi and I have replaced the start capacitor a few years back. I was going to take home a meter Today and run through the checking procedure on the control box.
Since the problem is intermittent (has occurred 3 times in the last couple weeks) would checking the control box show any issues with the components?
Pic of the control box attached.
Thanks in advance for any help.
Last edited by Bobo; 08-23-2012 at 06:40 AM.
Thanks LLigetfa. Actually I did see that thread I was hoping mine was an easier solution.
Below are the results from my control box check.
Start Capacitor 105-126 MFD measured 106
Run Capacitor 10 MFD measured 7.6
Overload should not be over .5 ohms measured .58
Relay Should be zero measured .57 ohms
The run capacitor was off the most and the relay seemed a little high ( I'm a mechanical guy though, I usually shock myself around electricity). Could any of these be the culprit?
Clamp on an ammeter and see what it reads during the first 10 seconds.
Any problem with leaving the system running like that?
There is a problem if your pump shuts off while you are running sprinklers. The cycling on and off will destroy your pump, motor, switch, control box, and is most likely why your check valve has failed. Taken 30 seconds for water to reach the top is not good but the real problem is that the irrigation zones do not match the output of the pump which causes cycling.
What sort of pressure tank do you have?
I'm sure I'm going to need to have the system repaired eventually but for now unless I'm watching the pressure gauge everything seems normal.
Your stop-gap remedies and procrastination will only result in costing you more in the long run. Stretching the bladder, short, more frequent cycles, and water hammer on the checkvalve will exact their toll.