EE
Heat Siphon General Control Board Error / EEPROM Fault

Display shows “EE” or “E.E.” and the unit is completely locked out.

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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

Corrupted control board memory, Power surge damage, Internal control board failure

How to Fix / Troubleshooting

Safety first: Turn off power at the breaker.

  • Power reset: Leave the unit powered off for at least 5–10 minutes to allow capacitors to discharge, then restore power and see if the error clears.
  • Check supply voltage and grounding: Ensure the unit is properly grounded and that line voltage is within specification. Surges and poor grounding can corrupt the controller.
  • Inspect board: Remove the control panel cover and visually inspect the control board for burn marks, swollen components, or moisture damage.
  • Replacement: If EE persists, the control board will likely need to be replaced with an OEM Heat Siphon board by a qualified technician.
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Repair Difficulty

Professional Required 5/5

Required Part

Main Control Board
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