Insignia freezer shows E7; compressor may not start or may shut off quickly; clicking sound from rear.

Safety first: Unplug the freezer. The compressor and surrounding tubing can be very hot; allow it to cool before touching.

Steps:

• Access compressor area: Remove the rear lower access panel to expose the compressor, start relay, and overload protector.
• Inspect start components: Remove the plastic cover on the compressor terminals. Check the start relay and overload protector for signs of burning, cracking, or rattling when shaken.
• Test relay and overload: Use a multimeter to check continuity according to the service manual. A relay that is open or shows burn marks should be replaced.
• Check compressor windings: Measure resistance between the three compressor pins (C, S, R). Values should be finite and consistent with spec; any open winding or direct short to ground indicates a bad compressor.
• Replace start device: If the compressor windings test good, install a new compressor start relay and overload kit specified for your Insignia model.
• Monitor operation: Restore power and listen. If the compressor starts and runs smoothly, the issue was likely the start device. If it still clicks and shuts off, the compressor itself may be locked and require professional replacement.

Important: Compressor replacement requires refrigerant recovery and recharging; this must be done by an EPA-certified technician.