E6 displayed; unit powers on but neither compressor nor fan starts; no ice production.

Safety: Disconnect the appliance from mains power before opening the control compartment. Capacitors on the board may hold charge; avoid touching components unnecessarily.

Steps:

• Power reset: Unplug the unit for at least 10 minutes to fully discharge the control board. Plug back in and check if E6 clears.
• Inspect power supply: Verify the outlet voltage with a multimeter. Low or unstable voltage can trigger control errors.
• Access the control board: Remove the top or rear panel to reach the main control PCB. Look for burn marks, swollen capacitors, or a burnt smell.
• Check connectors: Ensure all harnesses are firmly seated and keyed correctly. Look for signs of arcing or melted plastic at the relay terminals.
• Look for moisture damage: If there is condensation or water near the board, dry the area thoroughly and correct any source of leaks before reassembly.
• Replace the PCB: If visual inspection reveals damage, or if E6 persists after reseating connectors and power-cycling, replace the main control board with the correct Caso part number.
• Do not bypass safety circuits: Never jumper or bypass relays or sensors on the PCB; this can cause fire or electric shock.