Pump runs but controller shows LOW FLO or LOW FLOW; water movement at returns is weak.

Safety first: Turn off power at the breaker before opening the pump or filter. Relieve filter pressure using the air relief valve.

• Verify filter condition:
  • Check the pressure gauge on your Jandy filter. If it is significantly above normal clean pressure, perform a backwash (DE/sand) or hose off cartridges.
  • Inspect cartridges for tears or collapsed pleats and replace if damaged.
• Check valve positions:
  • Confirm all Jandy NeverLube valves on suction and return lines are fully open.
  • Ensure any bypass valves (e.g., heater bypass) are not restricting flow.
• Inspect for impeller blockage:
  • Turn off power and remove the pump lid and basket.
  • Reach into the volute opening and feel for debris in the impeller eye (leaves, string, pebbles). Remove any obstruction carefully.
• Check for undersized or obstructed suction:
  • Look for kinks or collapses in any flexible suction hose (for above-ground setups).
  • If suction is weak only from one line (e.g., skimmer), partially close the stronger line to balance flow.
• If LOW FLO remains: The impeller may be worn or the plumbing may be undersized or blocked. Consider having a technician evaluate system design and inspect the impeller and diffuser.