Display shows E5 and the compressor does not run; interior light and display may still work.

Safety first: Unplug the freezer. Work only from the rear service panel. Do not open the sealed refrigeration system.

• 1. Access compressor compartment: Move the freezer away from the wall. Remove the lower rear cover to expose the compressor, start device, and control module.
• 2. Listen and observe: After plugging in (for testing only), listen for clicking from the start relay or humming from the compressor. Then unplug again before touching anything.
• 3. Inspect start relay/PTC: Remove the plastic cover on the compressor terminals. Detach the start relay/PTC module. Check for burn marks, rattling pieces inside, or melted plastic. Replace if damaged.
• 4. Test compressor windings: With the unit unplugged, measure resistance between the three compressor pins (C, S, R). You should see low but finite resistances; no pin should be shorted to the compressor shell (ground). If windings are open or shorted, the compressor is faulty.
• 5. Check run capacitor (if present): If your Severin model uses a capacitor, test it with a capacitance meter. Replace if far out of spec or shorted.
• 6. Inverter models: If the compressor is connected to an inverter board rather than a simple relay, inspect the inverter for burnt components. Replacement of the inverter module is usually required if faulty.
• 7. Reassemble and test: Refit the start device or inverter, secure the cover, restore power, and see if E5 clears and the compressor starts reliably.

Important: If the compressor itself is seized or has electrical faults, replacement requires specialized tools and refrigerant handling and must be done by a licensed refrigeration technician.