NetSpa Relay Operation Without Load Activation

NetSpa spa makes a clicking sound from the motor unit but the pump or heater does not start.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Stuck or burned relay contacts, Open circuit in pump or heater, Loose internal wiring, Failed motor or heater drawing no current

How to Fix / Troubleshooting

Safety first: Unplug the spa before any further inspection.

  • Observe behavior: Note whether the clicking occurs when starting the pump, heater, or blower. This identifies which relay is operating.
  • Check external signs: Ensure hoses are connected and water level is correct; some models will not start components under unsafe conditions.

Because the relay is clicking but the load is not running, either the controlled component (pump/heater) or the relay contacts are faulty. Internal electrical diagnosis and replacement of the NetSpa pump, heater, or control PCB should be done by a technician.

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Repair Difficulty

Professional Required 5/5

Required Part

NetSpa main control PCB or associated pump/heater
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