Freezer shows E7; compressor may not start or may shut down quickly; sometimes accompanied by clicking sounds.

Safety first: Unplug the freezer. High voltage is present at the compressor and inverter. Do not attempt sealed system work without proper training and tools.

• 1. Listen for compressor behavior: After plugging in, note if the compressor attempts to start, hums, or clicks off. Unplug again before further work.
• 2. Inspect inverter module: On Electrolux inverter models, the inverter board is mounted near the compressor. Check for burn marks, cracked components, or a burnt smell.
• 3. Check wiring: Verify that the harness from the main control board to the inverter is fully seated and not damaged.
• 4. Test supply voltage (advanced): With extreme caution and proper meter, confirm that the inverter is receiving correct AC line voltage and control signal from the main board (refer to service manual). If supply is correct but compressor does not run, suspect the inverter or compressor.
• 5. Replace inverter board if faulty: If the compressor windings test good (resistance and no short to ground) but E7 persists, replace the inverter board.
• 6. Call a professional for sealed system issues: If the compressor windings are open/shorted or the compressor is mechanically seized, a licensed refrigeration technician must replace the compressor and recharge the system.