How to Fix / Troubleshooting

Safety first: Unplug the spa before any disassembly. Do not insert fingers into water ports.

Check filter: Remove and inspect the filter cartridge. Replace if collapsed or heavily soiled.
Inspect ports: Look into the suction and return ports for visible debris and remove with a plastic tool or gloved hand.
Flush system: Drain the spa and flush the ports with clean water to dislodge hidden debris.
Restart: Refill the spa, bleed air from the system, and run filtration. If the pump still only hums, the impeller may be seized or bearings worn.
Replace pump: On most SaluSpa units, this requires replacing the pump/heater assembly or internal pump module.

Warning: Do not repeatedly power-cycle a seized pump; this can overheat the motor and wiring.

Loud humming noise from pump/heater unit; little or no water movement.

Possible Causes