E6

Klarstein Communication / Internal Sensor Calibration Error

E6 error on display; cooker may start but quickly stops, or refuses to enter certain modes.

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.

Possible Causes

Firmware glitch in main PCB, Corrupted EEPROM or calibration data, Loose internal connectors between display board and power board, Incompatible or replaced sensor without recalibration

How to Fix / Troubleshooting

Safety: Unplug the unit before opening. Do not short any pins on the board.

Step 1 – Full power reset:

Unplug the multicooker for 15–20 minutes.
Press and hold the main Start/Stop button (if accessible) for 10 seconds while unplugged to discharge capacitors.
Reconnect and test.

Step 2 – Check internal connections:

Remove the outer housing screws to access the control area.
Locate the ribbon cable between the display/control panel and the power PCB.
Unplug and re-seat the ribbon cable and any sensor connectors firmly.

Step 3 – Inspect for damage:

Look for corrosion on connectors, especially if the cooker has been exposed to steam leaks.
Check for cracked solder joints on the display board.

Step 4 – Repair:

If E6 persists after reseating connectors, the main control PCB may need replacement.
Some Klarstein models require factory calibration after board or sensor replacement; this must be done by an authorized service center.

Repair Difficulty

Hard 4/5

Required Part

Main Control PCB

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