Safety: Do not repeatedly reset a breaker that trips immediately. Unplug the unit and do not operate until inspected.

Visual inspection: Check the power cord and plug for damage or burn marks. Replace if defective.
Check for moisture: Look for water around the compressor area, PCB, or inside the cabinet that could reach wiring. Dry thoroughly and identify the source of leaks or condensation.
Inspect PCB and wiring: Remove the rear panel and look for charred wires or components. Repair or replace damaged wiring with proper insulation.
Compressor test (advanced): With a multimeter, measure resistance between compressor terminals and to ground. Any continuity to ground indicates a shorted compressor requiring professional replacement.
PCB replacement: If the board shows obvious damage, replace the main control PCB.
Professional help: If you are not experienced with mains electrical diagnostics, contact a qualified technician.

Wine cooler trips the household circuit breaker or RCD when plugged in or shortly after starting.

Possible Causes