Freezer not cooling at all; interior remains at room temperature, compressor not running, display may be on.

Safety first: Unplug the freezer before removing any panels or touching wiring.

• 1. Confirm power: Check that the outlet has power by plugging in another device. Verify the freezer's power cord and plug are intact.
• 2. Check settings: Ensure the freezer is switched on and not in a demo or standby mode. Set the temperature to a colder setting.
• 3. Listen for compressor: After plugging in, listen at the back for humming or clicking. No sound suggests a control or start device issue.
• 4. Inspect start relay and overload: Remove the rear lower panel, then the compressor terminal cover. Check the start relay/PTC and overload for burn marks or loose fit. Replace with Severin-compatible parts if damaged.
• 5. Test compressor windings: With a multimeter, measure resistance between compressor terminals and to ground. Open or shorted windings indicate a failed compressor.
• 6. Check control board output: If the compressor and start device are good, the main control board may not be sending power to the compressor. Inspect the board and replace if necessary.

If the compressor is electrically faulty, replacement requires a refrigeration technician.