— (no power)
Hot Spring
No Power / Main Supply Failure
No lights or display on control panel; spa appears completely dead.
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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
Tripped house breaker, Tripped GFCI, Loose main power connections in IQ control box, Blown control board fuse
How to Fix / Troubleshooting
Safety first: Turn off all spa breakers before opening any electrical panel.
- Check breakers: Verify that the main spa breaker and any GFCI subpanel are in the ON position. Reset if tripped.
- Inspect power connections: With power OFF, open the IQ control box and confirm that the incoming power wires are tight and not burned.
- Check internal fuses: Many Hot Spring IQ boards have low-voltage fuses. Replace only with identical type and rating if blown.
If power is present at the spa but the control board remains dead, the IQ control board likely needs replacement.
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Repair Difficulty
Hard
4/5
Required Part
IQ Control Board
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