Summit freezer shows E8 and may not maintain set temperature; compressor operation seems abnormal.

Safety first: Unplug the freezer before accessing the rear service panel or compressor area. High voltage is present when energized.

Steps to troubleshoot E8:

• Access rear compartment: Move the freezer away from the wall and remove the rear lower access panel to expose the compressor and control board (if located there).
• Inspect compressor wiring: Check that all wires to the compressor, start device, and overload are firmly connected and not burnt or melted.
• Listen for relay clicking (after restoring power briefly): Plug in the freezer and listen for the control relay clicking on and off rapidly. Then unplug again. Rapid clicking can indicate a failing relay or compressor.
• Check the control board: Look for burnt spots or damaged components near the compressor relay on the main PCB. If present, the board should be replaced.
• Test compressor windings (advanced): With power disconnected and start device removed, measure resistance between compressor terminals. Extremely low or shorted readings indicate a failing compressor.
• Replace main control board or relay module: If the compressor tests normal but the relay is burnt or the board is damaged, install a Summit-compatible control board or relay module.
• Reassemble and test: Reinstall the rear panel, restore power, and monitor compressor operation and temperature. The E8 code should clear if the fault is resolved.

Important: If compressor windings are shorted or the compressor overheats and trips repeatedly, a sealed system repair is required and should be performed by a licensed refrigeration technician.