Troubleshooting Well Pump Issues

Problem 1: Pump turning on and off rapidly (short cycling)

Possible cause – Pressure tank is waterlogged.

Fix – For traditional galvanized tank, you will need to TURN OFF POWER, open hose bibb (water faucet) to release pressure from the tank. Remove pressure gauge or other fitting from tank to break vacuum so tank will fully drain.

For captive-air style tank, TURN OFF POWER, open hose bib (water faucet) to release pressure from tank. Check air pressure inside tank with tire gauge at the valve stem located on top of the tank. Record reading – air pressure should be 2 lbs LESS than pressure switch cut on. Example – A 30 on, 50 off pressure switch would use 28 psi of air in the tank. A 40 on, 60 off pressure switch would use 38 psi. After adjusting air, replace cap, turn power on. If problem persists – CALL FOR SERVICE.

Problem 2: Pump does not run

Fix – Check breaker. CALL FOR SERVICE

Problem 3: Pump has power but does not run.

Fix – TURN OFF POWER AT CIRCUIT BREAKER.CALL FOR SERVICE

Problem 4: Pump hums but will not run.

Fix – TURN OFF POWER AT CIRCUIT BREAKER.CALL FOR SERVICE

Problem 5: Pump runs but no water.

Possible cause – If it is a submersible pump, you could have a hole in the drop pipe, stripped splines at the motor, or a broken shaft in the pump.CALL FOR SERVICE

If it is a shallow or deep well jet pump, the pump may have lost its prime.

Fix – Steps to re-prime pump:

  1. TURN OFF POWER
  2. Remove gauge or other plug at pump housing
  3. Pour water into pump until housing is full
  4. Replace gauge or plug
  5. Turn on power
  6. Open faucet or hose bibb to bleed air from system

You may need to repeat these steps several times over. If still unable to prime or pump keeps losing prime –CALL FOR SERVICE

Problem 6: Air coming through water lines into the house

Possible cause – Problem with air control system

Fix – CALL FOR SERVICE