Pump is very noisy, producing a high-pitched whine or grinding sound from the motor end.

Safety first: Turn off power and allow the motor to cool before touching it.

• Confirm noise source: Use a mechanic’s stethoscope or a long screwdriver to listen near the motor bearings versus the pump housing to confirm the noise is from the motor.
• Check for leaks: Inspect the area between the pump housing and motor for signs of water leakage, rust, or mineral deposits, indicating a failed mechanical seal.
• Short-term operation: The pump may continue to run for a short period, but noisy bearings will eventually seize. Plan for replacement as soon as possible.
• Replace assembly: On most Emaux pool pumps, bearing replacement requires motor disassembly and press tools; it is usually more practical to replace the complete motor assembly and mechanical seal together.

Do not ignore bearing noise; failure can lead to motor burnout and potential electrical hazards.