F3 is shown and the freezer may not start cooling after being plugged in; sometimes accompanied by a brief relay click.

Safety first: Unplug the freezer and allow the compressor to cool for at least 30 minutes before inspection.

• 1. Check ventilation: Ensure there is adequate space around the freezer (usually at least 5–10 cm at sides and back). Clean dust from the condenser coils and rear grille with a soft brush or vacuum.
• 2. Inspect overload protector: Access the compressor terminal cover and locate the overload device (often combined with the start relay). Check for discoloration or burning. Replace if damaged.
• 3. Test compressor windings: Measure resistance between compressor terminals and to ground. Shorted or open windings indicate a failed compressor.
• 4. Replace start relay/overload: If the compressor tests good, install a new Severin-compatible start relay/overload assembly.
• 5. Allow cool-down: After repairs, let the compressor cool fully, then restore power and observe if F3 clears and the compressor runs steadily.

If F3 recurs and the compressor overheats quickly, the compressor itself may be failing and should be evaluated by a refrigeration technician.