NetSpa hot tub shows E09 and the bubble (air blower) function will not start.
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.
Possible Causes
How to Fix / Troubleshooting
Safety first: Disconnect power before inspecting the air outlet or motor unit.
- Check air outlet ring: Inspect the bubble outlet ring at the bottom of the spa for debris, sand, or scale buildup. Gently clean the holes with a soft brush.
- Ensure spa is on level ground: If the motor unit is lower than the spa base, water can siphon into the blower. Reposition the unit as per NetSpa instructions.
- Dry-out period: If you suspect water has entered the blower, leave the spa unplugged for 24 hours to allow internal moisture to evaporate.
If E09 persists and the blower does not run or makes loud humming noises, the NetSpa air blower motor or its control circuit is likely damaged and should be replaced by a technician.
Repair Difficulty
Required Part
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