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Troubleshoot ' Chart 110 t i l B Pump Runs But Does Not Deliver Water A The pump and system should be periodically checked for water quantity, pressure, drawdown, periods of cycling, and operation of controls Under no circumstances POSSIBLECAUSES How TO CHECK HOW7000RRECT should be the pump be operated for any prolonged perlods of time with the I Groundwater level in Check well draw down Lower pump if possible If not discharge valve closed This can result in motor and pump damage due to well is too low or wet[Is throttle discharge valve and install overheating A properly collapsed water level control 9 p p y sized relief valve should be Installed at the well head to prevent 2 Integral pump check Install pressure gauge start pump Ii not close to the pump curve the pump from running against a closed valve valve is blocked gradually close the discharge valve and remove pump and inspect discharge (3 if the um falls too grate, or there is a foss of performance,read pressure at shut off After taking section Remove blockage repair pump P p ormance, refer to Troubleshooting, reading,open valve to Its prevfmis valve and valve seat If necessary Section 7 position Convert PSI to feet Check for other damage Rinse out (For water PSI x 2 31 fUPSI=_ft) pump and reinstall and add this to the total verfical distance from the pressure gauge to the water level In the well while the pump is 1 1 1 running Refer to the specific pump curve for the shut off head for that pump model If the measured head is close to the curve pump is probably OK The majority of problems that develop with submersible pumps are electrical,and most of 3 Inlet strainer is Same as B 2 above If not close to the pump curve these problems can be corrected without pulling the pump from the well The following clogged remove pump and Inspect Clean charts cover most of the submersible service work As with any troubleshooting strainer inspect integral check y g valve for blockage rinse out pump procedure, start with the simplest solution first, always make all the above-ground checks and reinstall before pulling the pump from the well 4 Pump Is damaged Same as B 2 above If damaged repair as necessary Rinse out pump and re Install Usually only two Instruments are needed—a combination voltmeter/ammeter,and an ohmmeter These are relatively Inexpensive and can be obtained from most water systems suppliers C Pump Runs But at Reduced Capacity " :'i ��!s.y"� POSSIBLE CAUSES HOW TO CHECK HOW TO CORRECT ,,WHEN VOkING WITH ELECTRICAL.CIRCUITS, USErCAUTIOWTO AVOID Orsi-'r�" . 'ELECTRICAL SH ?CK'1t is fecommendeid that rubbertglovesfand lionts be worn 7r A• than ranticipated larger operation discharge during pump discharge valve andbinstallnwaterrlevel and'that care 1S,take to"h"avemetal Control boxes and rnot0 st g ounded to power, r %s r t,.�,� ..fir, Y control �suppfy'ground or steel drop pipe or Casing extendingilntotheiwell;WARNING 2 Dischargepiping or Examine system for leaks Repair leaks o P p g Y p Submersible matols are Intended for operation Inca well When not operated In a valve leaking �we!!,'fajture,ta coitne�t rrioi�i�fraine to papier supply grotind�may result in;se�fous>~�� 3 Pump strainer or check Remove pump and inspect Clean repair rinse out pump and ` valve are clogged reinstall - 4 Pump warn Same as B 2 above If not close to pump curve remove pump and inspect D. Pump Cycles Too Much POSSIBLECAUSES HOW TOCHECK HOW TO CORRECT 1 Pressure switch Is not Check pressure setting on switch Re adjust switch or replace It properly adjusted or is and operation Check voltage across defective defective closed contacts 2 Level control Is not Check setting and operation Re adjust setting (refer to properly set or is manufacturer data) Replace If defective defective 3 Plugged errfffer valve Examine valve and orifice for dirt or Clean and/or replace rf defective or bleed orifice corrosion Pag$9 0 Page 6