Sta-Rite variable-speed pump shows E10 and stops; may coincide with very low or no water flow.

Safety: Turn off power before opening the pump lid.

• Prime the pump: Remove the Sta-Rite pump lid, fill the strainer housing with water using a hose, ensure the basket is seated, lubricate the lid O-ring with silicone lube, and reinstall the lid tightly.
• Check water level: Ensure pool water level is at least halfway up the skimmer opening so the skimmer does not draw air.
• Clear obstructions: Empty skimmer and pump baskets. Check that suction valves are open and that there are no obvious blockages in suction lines.
• Inspect for air leaks: With the pump running, look for air bubbles under the pump lid and in the return jets. Tighten unions on the suction side, replace cracked fittings, and replace a flattened or cracked Sta-Rite pump lid O-ring.
• Reset dry-run protection: After restoring prime and fixing leaks, restart the pump. If E10 persists despite solid prime and good flow, the flow/pressure sensing in the drive may be faulty.