Wayne · Sump / Well Pump error code
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Guide · Sump / Well PumpA battery backup is a second 12 V DC pump that sits higher in the pit than the primary and runs off a charged deep-cycle battery when the primary cannot keep up or loses power. The key details are float height (backup turns on above the primary), a check valve on each pump's discharge so neither pumps back into the pit through the other, and a working alarm. Follow the kit's installation instructions for the exact tee and float positions.
Guide · Sump / Well PumpBackup controllers alarm for four main reasons: no AC power, low or failed battery, blown fuse, or the backup pump had to run. A backup pump run means the primary pump needs attention now.
Guide · Sump / Well PumpWhen a pump runs but moves little water, the cause is often outside the motor: an air-locked volute (missing or plugged weep hole), a check valve installed backward or stuck, a closed or frozen discharge, a clogged inlet screen, or too much lift for the pump. The wrong turn is buying a second pump.
