Sta-Rite digital pump shows E09 and runs only at a fixed low speed or not at all.

Safety: Disconnect power before accessing motor or control wiring.

• Inspect sensor harness: On integrated Sta-Rite variable-speed motors, locate the low-voltage harness between the motor and control. Check for cuts, pinched sections, or corroded connectors. Reseat or replace as needed.
• Check for water ingress: Look for moisture inside the motor terminal area or control housing that could affect sensor signals. Dry thoroughly and improve sealing.
• Test operation at different speeds: After reseating connectors, restore power and command several speeds. If the pump cannot change speed or throws E09, the internal sensor or drive is likely defective.
• Replace motor or drive: On many Sta-Rite VS pumps, the speed sensor is integral to the motor; replacement of the motor assembly or complete drive/motor kit is required.