Display shows E7; compressor may not start or may shut down quickly; unit not cooling.

Safety first: Unplug the wine cooler. The compressor and start components carry mains voltage; only work on them if you are comfortable with electrical safety. Components may be hot.

Steps to check and fix:

• 1. Access compressor compartment: Remove the rear lower service panel to expose the compressor, start relay/PTC, and overload protector.
• 2. Visual inspection: Look for burnt marks, melted plastic on the relay housing, or discolored wires. Ensure all spade connectors are tight on the compressor pins.
• 3. Test start relay/PTC: Disconnect the relay from the compressor and shake it gently; if it rattles excessively or smells burnt, it is likely faulty. Measure resistance according to the part specification if available.
• 4. Replace start components: If suspect, install a new Vestfrost-approved compressor start relay/PTC and overload protector. Match the part numbers to the compressor model.
• 5. Check compressor windings: With power disconnected and start components removed, measure resistance between the compressor terminals (C, S, R). Look for open windings or direct shorts to ground. Abnormal readings indicate a failed compressor.
• 6. Test run: Reconnect wiring, restore power, and observe compressor start-up. The E7 code should clear if the start circuit is restored.
• 7. If compressor is locked or shorted: A mechanically failed compressor requires sealed-system work (recovery, replacement, recharging) and must be handled by a certified refrigeration technician.