Noisy Pressure Switch (Not Cycling)
Posted by Ken on July 11, 2001 at 07:29:41:
I have a 120 ft deep rock well and use 1.5 HP submersed pump. My water pressure is fine at 20-40
and the pump does not run all-the-time. However, each time my pressure falls enough for the switch to cut on,
it rattles loudly two or three times just to cut on.
Everything works fine after that until next time it has to cut on again. I remember when it used to be so quiet that I could hardly tell whether my pump had cut on or not, so I know something isn't right. Normally, this wouldn't bother me, but since my house is cooled using a water-source heat pump, I can hardly sleep at night because this loud clicking noise occurs repeatedly whenever the heast pump cycles on, somtimes as frequently as every nine minutes, but the pump is cutting on every 40-50 seconds unitl the heat pump shuts back off.

I have theorized that my pump is so powerful that it must be jolting the switch each time it initially turns on, causing the pressure to immediately rise high enough that the switch turns the pump back off.
Thinking that putting more pressure on the line might fix this, I adjusted the switch to 40-60, but it did no good. I think I remember when the outside temperature is milder, not too hot or cold, that this rarely occurs. Replacing the switch does resolve the problem either. But now I am concluding that there must be some electrical problem at the switch, but everything is properly grounded and my breakers are both good. I have had several plumbers and well people to look at it but they are all stumped. I don't know whether to call an electrician, a plumber, or a heating and air specialist, or all three.

If anyone can tell me how to fix this pressure switch to quietly click on once again, maybe I can get some sleep.


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