E13
NetSpa
Function Relay / Output Driver Fault
NetSpa spa shows E13 and the bubbles or massage function cannot be activated from the panel.
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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
Failed relay controlling blower or pump, Burned triac on PCB, Loose output wiring to blower/pump, Overcurrent damage from previous short
How to Fix / Troubleshooting
Safety first: Disconnect power before any inspection.
- Check if other functions work: Test heating and filtration. If only one function (bubbles or massage) fails with E13, the issue is likely with that specific output circuit.
- Inspect external wiring: Look for damaged or burned wires leading from the control unit to the blower or pump (without opening sealed compartments).
- Power reset: Unplug for 10 minutes and retry.
Because E13 usually indicates an internal control board failure, the NetSpa main control PCB or entire motor unit will typically need replacement by a professional.
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Repair Difficulty
Professional Required
5/5
Required Part
NetSpa main control PCB (output relay/triac section)
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