Vissani freezer displays E7; interior light and fans may work but compressor does not run.

Safety: Disconnect power before removing any control covers. Static discharge can damage electronics; ground yourself before touching the board.

Steps:

• Power reset: Unplug the freezer for at least 10 minutes to allow capacitors to discharge. Plug back in and check if E7 clears.
• Access control board: On most Vissani freezers, the main control board is behind the upper control panel or rear service panel. Remove screws and carefully lower the panel.
• Inspect board: Look for burnt components, bulged capacitors, or signs of moisture damage.
• Check connectors: Reseat all harness connectors one at a time, ensuring they are fully seated and locked. Look for bent pins or corrosion.
• Check for shorts: Inspect wiring harnesses for pinched or rubbed-through insulation that could short low-voltage circuits.
• Replace board: If visual inspection shows damage or E7 persists after reseating connectors, replace the main control board (PCB) with the correct Vissani part number.

Note: Board replacement requires careful handling; label connectors before removal to avoid miswiring.