Troubleshooting - Pentair MYERS MBSP-3 Installation And Operation Manual

TROUBLESHOOTING

TROUBLESHOOTING - PUMP
Pump won't run.
Motor hums but pump won't run.
Pump runs but pumps very little or no
water.
Pump cycles too frequently.
MY979 (06-08-20)
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.
Check for low or defective battery.
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.
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.
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