On the output side of the pump (where the pipes come in and go out), there is a pressure switch which turns the pump on and off as the pressure dictates. When the pressure goes down to zero, there is a safety function on the pressure switch which keeps it off. I am not on the boat now and so cannot provide photos, but have experienced what you are talking about.
The pressure switch mechanism is a grey plastic box about 3” by 3” by 3”, and has the Square D (manufacturer) logo on the top. On the right side, of the pressure switch mechanism, towards the base of it, is a small chrome/stainless steel round rod/lever that when pulled up, will manually start the pressure pump, and after a moment or two, it will maintain the pressure normally.
Specific instructions (from memory) are:
This is all that should be required to get the system back into “normal” mode. Both the pump and the pressure switch are very reliable, and shouldn’t need to be adjusted or rebuilt for 10+ years.
That being said, anytime the system is drained/relieved of pressure, the manual lever will have to be engaged to get the pump re-engaged.
Best of luck.
John W. Clanton
S/V Devereux, A55, No. 65
Currently in Antibes, France
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