Pump hums but does not start; may trip breaker after a few seconds.

Safety first: Turn off power at the breaker. Capacitors can hold a charge; if you are not experienced with electrical work, contact a professional.

• Check for seized motor:
  • With power off, try to spin the motor shaft or fan by hand.
  • If it will not turn, the motor is seized and must be replaced.
• Inspect impeller for blockage:
  • Remove pump lid and basket, reach into the impeller opening, and clear any debris.
• Test/replace capacitor:
  • Locate the start/run capacitor on the motor.
  • Discharge it safely and test with a capacitance meter, or replace with an identical Jandy-specified value.
• Restore power and test:
  • If the motor now starts smoothly, monitor for normal operation.
• If it still only hums: Replace the motor or complete pump assembly.