Pump will not start at all; no hum, no sound, but power is present at the equipment pad.

Safety: Use caution when working near live electrical equipment. Turn off breakers before opening panels.

• Check breakers and GFCI: Reset the pool pump breaker and any GFCI outlets or breakers feeding the Zodiac pump.
• Bypass timer: If using a mechanical timer or external relay, temporarily bypass it by wiring the pump directly (qualified person only) to confirm if the timer is faulty.
• Inspect pump terminals: With power off, remove the pump wiring cover and check for loose or burnt connections. Tighten as needed.
• Test voltage at pump: Measure line voltage at the pump terminals. If correct voltage is present and the pump is unresponsive, the internal control or motor is likely failed.

Internal electrical failures generally require replacement of the motor or control module by a technician.