pumpmann
New Member
3 hp submersible pump 500 ft deep well 230 volt single phase, wont start after sitting idle for about 30 years. hooked up a 5000 watt generator to 10 gauge wire to starter box and no start . Pump to starter box 2 gauge wire about 25 yards distance apart. All three wires are black but one is marked ground. Has a grundfos pump corp. starter box. Thinking about replacing with a franklin 2823028110 control box, 3hp, 230v.1 phase. Also should I replace the 10 gauge wire with 6 gauge as any bigger will not fit the plug end or is the 10 gauge OK. A pump man suggested checking the continuity between each pair of wires (red-black, black-yellow, yellow-red), to check the motor windings. Then check each wire for a short to ground. Not sure how to do all of this. Have a volt and ohm meter. Hope someone can help explain this step by step . I do not have a shut off box or pressure tank installed at this time but do have the facet turned on. I will be using the well just to fill up watering troughs. Also do I need a pressure tank as I will leave the frost free faucets open when pump is on. As am afraid of a pressure tank freezing in cold weather. You experience advice will be very helpful and thankful.