E10 error displayed, often accompanied by a continuous alarm and rapidly rising internal temperature.

Safety first: Unplug the freezer before cleaning or accessing rear components. Sealed-system work must be done by a certified refrigeration technician.

Basic checks:

• Door and gasket: Ensure the door closes fully and the gasket seals all around. Replace damaged gaskets.
• Ventilation: Check that there is adequate space around the freezer and that ventilation grills are not blocked.
• Clean condenser: Remove the rear lower panel and gently vacuum dust from the condenser coil and any condenser fan blades. Ensure the fan spins freely and runs when the compressor is on.
• Monitor compressor: After restoring power, listen for the compressor. It should run smoothly without clicking off repeatedly.
• Check for frost pattern: If you can see the evaporator, a healthy system will frost evenly across most of the coil. A partial frost pattern or no frost suggests a sealed-system issue (leak, restriction, or weak compressor) that requires professional service.