Er1
Evolution Spas Topside Control Panel Communication Error

Display shows Er1 or ERR1, spa may not respond to keypad inputs.

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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

Loose keypad cable connection, Damaged topside control cable, Moisture intrusion in control panel, Control board communication port fault

How to Fix / Troubleshooting

Safety: Turn off power at the GFCI breaker before disconnecting or reconnecting any control cables.

  • Inspect keypad cable: Access the equipment bay and locate the ribbon or data cable from the topside panel to the control pack. Ensure it is fully seated at both ends.
  • Check for damage: Look for pinched, cut, or chewed sections of the cable.
  • Dry moisture: If the topside panel shows condensation under the overlay, gently dry the surface and consider replacing the panel if water has entered.
  • Power cycle: Restore power and see if Er1 clears.

If the error persists, the topside control panel or the control board may need replacement. A technician can test by substituting known-good components.

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Repair Difficulty

Medium 3/5

Required Part

Topside Control Panel
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