Phone Binghamton Area:  607-444-2164 Watertown Area:  315-788-0930 Email neil@swbg.us Pump Service SWBG provides full service repair technicians to go on-site to service your equipment.  As a service to our customers we have provided you with this troubleshooting guide.  Please give us a call.  We are available 24/7 for emergencies Well Pump Troubleshooting Guide Approaching a well pump repair situation requires knowledge of electricity.  Adequate electrical testing equipment is essential for correctly diagnosing voltage, amperage and continuity of components or systems.  Motors that are malfunctioning due to excessive resistance draw more amperage than its normal operating cycle.  Typical amperage reading on a malfunctioning motor will be three to six times higher than its normal operating amperage reading. Problem Possible Cause Repair Procedure Possible Solution Motor will not start Circuit breaker is tripped or faulty fuse Check circuit breaker or fuse Reset circuit breaker or replace fuse Motor will not start Faulty motor Check for high amperage Replace motor by calling SWBG Wholesale Motor will not start Faulty pressure switch Check for point corrosion Clean points or call SWBG Wholesale Motor will not start Faulty pressure switch Check for voltage transfer between terminals Replace is reuired by calling SWBG Wholesale Motor will not start Plugged pressure switch nipple Remove, inspect, clean or replace nipple Release or reinstall nipple ... call SWBG Wholesale Motor will not start Faulty control box Check for voltage transfer between terminals Replace control box if required ... call SWBG Wholesale Motor will not start Obstruction in impeller housing Inspect for sand or debris and check for high amperage Clear obstruction or call SWBG Wholesale Motor will not start Overload is tripped See trouble shooting chart for overload is tripped Reset overload button or call SWBG Wholesale Motor starts often Leak in piping system Inspect visible piping first then test buried or well piping Repair leak Motor starts often Foot valve or check valve not closing properly Inspect for obstruction, worn seat or disc Clean or replace or call SWBG Wholesale Motor starts often Pressure switch setting is incorrect Check pressures at the pump "on" and "off" modes Adjust to have 20 pounds between modes Motor starts often Faulty pressure switch Check pressure modes and attempt adjustment (above) Replace pressure switch ... call SWBG Wholesale Motor starts often in bladder type tank Tank is water logged Depress air inlet valve, inspect for water in tank Replace tank if bladder is defective or recharge ... call SWBG Wholesale Motor starts often in bladder-less tank Tank is water logged Drain tank Change aspirator device (air/ volume control) Overload is tripped Control box is defective Check voltage transfer between terminals Replace box ... call SWBG Wholesale Overload is tripped Motor is defective Check amperage Replace motor if required ... call SWBG Wholesale Motor always runs No water flow due to sand or obstruction Inspect check valve to verify if it is opening Clean piping or sand or obstruction or replace ... call SWBG Wholesale Motor always runs No water flow due to broken shaft Inspect shaft Replace motor ... call SWBG Wholesale Motor always runs Leak in piping system Inspect visible piping and test at hidden piping Repair leaks ... call SWBG Wholesale Motor always runs Malfunctioning control box Test voltage trasfer between terminals Replace box if required ... call SWBG Wholesale Motor always runs Pressure switch is defective Inspect points to see if they are "welded" together Replace pressure switch ... call SWBG Wholesale Motor always runs ... submersible pump Intake screen is plugged Pull pump and inspect screen Clean and determine cause ... call SWBG Wholesale Motor always runs ... aboveground pump Foot valve screen is plugged Pull drop pipe and inspect screen Clean and determine cause ... call SWBG Wholesale Motor always runs Low well water level Pull pump and / or piping Check water level and depth Motor always runs Low well water level Pump is oversized for well capacity or yield Test yield of well and size accordingly ... call SWBG Wholesale Motor always runs Well has collapsed Attempt to free pump or piping from collapsed well Raise pump or piping if well is deep enough Motor always runs Well has collapsed Attempt to free pump or piping from collapsed soil Have well cleaned and lined or new well ... call SWBG Wholesale Circuit trips or fuse blows on start up Defective wiring Inspect wiring Repair or replace wiring ... call SWBG Wholesale Circuit trips or fuse blows on start up Wiring is grounded to casing Perform ohm test on well casing and wiring Repair or replace wiring in well ... call SWBG Wholesale Circuit trips or fuse blows on start up Motor winding is defective Perform ohm test on winding Replace motor ... call SWBG Wholesale Circuit trips or fuse blows on start up Defective capacitor (three wire type pump) Locate in control box ... perform ohm test Replace if defective ... call SWBG Wholesale Circuit trips or fuse blows on start up Defective relay coil (three wire type pump) Locate in control box ... perform ohm test Replace if required ... call SWBG Wholesale Circuit trips or fuse blows on start up Voltabge supply is incorrect Perform voltage test Call electrical service provider

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