Wine cooler not cooling at all; interior light works but compressor never starts; no error code.

Safety first: Disconnect the appliance from mains before testing electrical components. Use a multimeter only if you are familiar with safe operation.

Steps to check and fix:

• 1. Listen for compressor: With the unit plugged in, listen for any humming or clicking from the compressor area. Then unplug before proceeding.
• 2. Check control settings: Ensure the unit is not in standby mode and that the set temperature is below ambient.
• 3. Inspect compressor start components: Access the compressor compartment and check the start relay/PTC and overload protector for burn marks or loose connections. Replace with Vestfrost-specified parts if damaged.
• 4. Test continuity: With power off, test the overload protector and relay for continuity according to their specifications.
• 5. Evaluate control board: If start components are good but the compressor never receives power, the main control PCB or thermostat circuit may be faulty and require replacement.
• 6. Call a technician: If compressor windings test bad or the compressor is locked, a professional sealed-system repair is needed.