Clicking noise from the back of the refrigerator every few minutes; compressor tries to start but shuts off.

Safety first: Unplug the refrigerator before accessing the compressor area.

Steps:

• Ventilation check: Ensure there is adequate space around the refrigerator and that the rear grille is not blocked. Poor ventilation can overheat the compressor.
• Inspect start device: Remove the compressor start relay/PTC and overload protector. Look for burn marks or a burnt smell.
• Replace start device: Install a new Etna compressor start relay/PTC and overload if the old one is suspect.
• Allow cooling: Leave the unit unplugged for 30–60 minutes to let the compressor cool, then plug back in and observe.
• Professional diagnosis: If the compressor still clicks and fails to start with a new start device, the compressor itself may be failing and requires a technician to test and replace if necessary.