American Whirlpool No Low-Voltage Power to Control Panel

Topside control panel is completely dead; no display or button response

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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

Blown low-voltage fuse on control board, Disconnected or damaged topside cable, Failed control panel, No incoming power to spa

How to Fix / Troubleshooting

Safety first: Turn off power at the GFCI breaker before opening the control pack.

A dead panel can be due to either no main power or a low-voltage issue.

  • Verify main power: Check that the GFCI breaker is on and not tripped. Confirm any local disconnect is also on.
  • Inspect fuses: Open the control pack and locate any low-voltage fuses. Test and replace blown fuses with identical ratings.
  • Check topside cable: Ensure the ribbon cable is firmly connected at both the panel and control board and shows no visible damage.
  • Test with replacement panel: If available, connect a known-good American Whirlpool topside panel to determine if the original is faulty.

If fuses blow repeatedly or no low-voltage output is present, the control board likely needs replacement by a professional.

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Repair Difficulty

Hard 4/5

Required Part

Topside Control Panel
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