Posted by Tinkerer05 on August 29, 2012 at 11:24:14 from (71.76.160.92):
I have a two wire well pump at approx. 385ft. There is a Pressure Tank and a Pressure Switch (40/60).
With power off, I measure: • 4.8 ohms between the two wires going to the pump (manufacturer’s winding resistance spec says 3.2 – 3.8 ohms, plus cable resistance from the well head to the pump • On the pump, open circuit between each wire and ground
With power on, at the well head I measure: • 235 VAC • 6.2 Amps on each of the wires (manufacturer’s spec for the current: full load - 6.8 Amps, Max load – 8 Amps)
My problem is that I am not getting any water coming out of the well, after 10 years of good service. Since the readings all seem to be normal (I think) for the pump, it seems that the only conclusion I can reach is that the well has gone dry. Are there any other possibilities?
What should the psi be in the Pressure Tank with power off? I measure 10 psi. Is that reasonable?
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