Wine cooler shows E6 and may not cool; compressor may not start or may shut off quickly.

Safety first: Unplug the unit before accessing the rear service panel. Do not attempt sealed system repairs (refrigerant) unless you are EPA-certified.

E6 typically points to a problem in the compressor drive or communication between the main control board and the compressor/inverter on certain Café wine coolers.

• Step 1 – Listen for compressor: With the unit plugged in and calling for cooling, listen at the back. If you hear repeated clicking or brief humming followed by silence, there may be a compressor or inverter issue. Then unplug the unit.
• Step 2 – Access rear compartment: Remove the lower rear panel to expose the compressor, start components, and control/inverter boards.
• Step 3 – Inspect wiring: Check the harness from the main control board to the inverter (if present) and from the inverter to the compressor. Ensure all connectors are fully seated and not burnt or melted.
• Step 4 – Check for obvious damage: Look for burnt spots on the inverter board or main control board. A burnt smell or visible damage usually means the board must be replaced.
• Step 5 – Basic electrical checks (advanced users): With power disconnected, measure compressor winding resistance at the compressor terminals and compare to Café specifications. An open or shorted winding indicates a failed compressor.
• Step 6 – Replace faulty component: If wiring is intact and compressor windings test good, replace the Café-compatible inverter board or main control board as indicated by diagnostics. If the compressor is electrically failed, a sealed system repair by a professional is required.

Because this involves high-voltage and sealed system components, many homeowners should contact a qualified technician for E6 faults.