15
HYD979 (06-08-20)
TROUBLESHOOTING
TROUBLESHOOTING - PUMP
Pump won’t run.
Check all the wiring connections.
Check for a low or defective battery.
Check that the automatic switch is free to move up and down.
Press the circuit breaker reset button on the control panel.
Motor hums but pump won’t run.
Check for low or defective battery.
Pump runs but pumps very little or no
water.
Make sure a check valve is installed and functioning between the primary pump discharge and the
Battery Backup wye.
Check for an obstruction in the discharge pipe.
The discharge pipe length and/or height exceeds the capacity of the pump.
Check for a low or defective battery.
The Positive (+) and negative (–) pump wires are reversed. Disconnect them and reconnect
correctly.
Pump cycles too frequently.
The check valve located between the discharge of the primary pump and the Battery Backup wye is
not installed or is not working properly. Install an auxiliary check valve or replace the existing check
valve as required.
