E15
CELLA Low Voltage or Power Supply Fault

E15 error code, unit may be unresponsive or stuck in standby

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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

Failed internal power supply on main PCB, Loose power cord connection, Faulty outlet or house wiring, Blown internal fuse on control board

How to Fix / Troubleshooting

Safety: Unplug the unit before opening any electrical compartments.

  • Verify outlet: Test the wall outlet with another appliance or a meter to confirm proper voltage.
  • Inspect power cord: Check the CELLA power cord for cuts, burns, or loose prongs. Replace if damaged.
  • Check internal fuse: Remove the control box cover and locate any board-mounted fuse. Test for continuity and replace with the same rating if blown.
  • Board power supply: If the fuse is good but the board does not power up properly and E15 remains, the low-voltage power supply section of the main control board is likely faulty and the board should be replaced.
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Repair Difficulty

Medium 3/5

Required Part

Main Control Board
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