How to check voltage, current, resistance to help diagnose well pump problems such as tripping breakers, blown fuses, weak pump performance or no water delivery from a well water pump. Nowadays we are excited to announce that we have found a very interesting content to be discussed, that is 2 wire submersible well pump wiring diagram.Some people searching for details about 2 wire submersible well pump wiring diagram and definitely one of these is you, is not it? I ohm ed out the motor and it is open (infinite resistance) to ground both legs and 3.2 ohms between the 2 leads going to the motor. Posted on Thursday, October 26, 2017 by Dave Nelson 2 comment(s) Troubleshooting 4" Submersible Motor: Insulation & Windings Resistance. Leak in system: Check system for leaks. Whatever the type of pump, it does the same thing, which is lifting water from the well to ground level. I went to go on vacation the last couple of days but had issues so I had to come home. (Fig. After doing so, he turned the breaker back on and something popped in the fuse box leaving a scorch mark inside of the fuse box and at that point he determined that the pump wasn't running..... so, essentially we paid them $800 for a repair that didn't fix the problem and now are saying that our pump is bad, that they will need to pull and replace it and that will cost me an additional $1000.... my questions are hardwiring and bypassing fuses standard practice? My pump is probably 150' from the holding tank. The 240 volt pump circuit to your well pump does not have a neutral, so you cannot get 120 volts without doing something that would be unsafe. They are telling me that the event that happened in the fuse box would definitely not have burned up my pump.... but they have been wrong and or shifty in general the whole time....are they trying to get me to pay them more to fix a problem that they created? BLUE or "run"wire connects from the On-Off switch or relay to a capacitor R terminal and also to the motor's R or run terminal. 2-Wire 1 HP Deep Well Pump superstore. I noticed a wire was charred and when I started the pump again saw a spark. The pump only runs for a few seconds and then shuts off. Yes - if you search with the on page search box you will find our articles on WATER PUMP SHORT CYCLING - home. 80. If the external wiring is ok (no short circuits) the motor is shorted internally, Use a VOM to check the voltage level at the pressure control switch, If voltage is too low, check voltage at the electrical panel and check that the proper size wiring was used for the ampacity and length of run and that there are no partial shorts or damaged wires or connectors, Check the actual electrical wiring against the motor wiring diagram or the installation manual for the equipment, Motor is too hot due to surroundings - inadequate ventilation, Install adequate ventilation, or if needed, shading, or relocate the motor/equipment to a cool location, Pump operates too long at low water pressure. Do you think the two are related. etc. Step 4 Visually inspect the control panel's wires, wire connections, relay and capacitor. Leave the circuit off to avoid a fire and shock hazard - sorry I know that's not exactly convenient. or Best Offer. Often the cause is a water-logged pressure tank. Is there a data tag on the pump giving its brand and model? The problem we are having after a period of a couple of months of no use of the property we arrive with no water. If the well casing is metal then connect the ground lead of the VOM/DMM (be sure it's a good clean connection) to the well casing or metal piping). - the 20amp pump circuit breaker keeps being thrown. Technically speaking, your pump capacitor needs electricity to start. How can I fix it please? If the air temperature is over 100 degF, the pump may be too hot and its thermal overload switch tripping because of the environment, not a pump problem. Motor will not start: 1. 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