Display is blank or shows only dashes, spa is unresponsive.

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

Loose topside control cable at spa pack, Damaged keypad cable, Failed topside control panel, Failed control board low-voltage circuit

Safety: Turn off power at the GFCI before accessing the control pack.

Check topside cable: Open the equipment bay and locate the ribbon or data cable from the topside panel to the control pack. Ensure it is fully seated and not corroded.
Inspect cable for damage: Look for cuts, pinches, or rodent damage along the cable path.
Power cycle: Restore power and see if the display returns to normal.

If the display remains blank, either the topside panel or the control board is faulty. A technician can test by substituting a known-good panel.

Hard 4/5

Topside control panel

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