Pump turns on but shuts off by itself after a few minutes without any error code.

Safety first: Unplug the pump and allow it to cool before touching the motor housing.

• Check water flow: Ensure the pool water level is adequate and that the suction and return lines are not blocked. Clean the filter cartridge or backwash the sand filter if equipped.
• Clear vents: Inspect and clean the motor cooling vents.
• Verify priming: Make sure the pump is fully primed and not drawing air.
• Test runtime: After cooling and cleaning, run the pump and monitor. If it consistently shuts off after a short period, the internal thermal protector is likely reacting to a failing motor. Replace the pump motor assembly.