Freezer runs but does not get cold enough; food is soft or partially thawed.

Safety first: Unplug the freezer before cleaning coils or accessing rear components.

Steps to improve cooling:

• Check temperature setting: Ensure the control is set to a proper freezer temperature (around -18°C / 0°F).
• Clean condenser coils: Move the freezer away from the wall. Vacuum dust from the rear or bottom condenser coils using a brush attachment. Improved airflow can significantly improve cooling.
• Verify ventilation: Ensure there is adequate clearance around the unit per Summit's installation instructions. Do not block the rear grille or toe kick.
• Inspect door gasket: Close the door on a sheet of paper and gently pull. If it slides out easily in multiple spots, the gasket may be leaking. Replace the gasket if torn, hardened, or warped.
• Check frost pattern (advanced): Remove the interior rear panel and inspect the evaporator coil. A full, even frost pattern is normal. Heavy ice on only part of the coil or no frost at all suggests a sealed system issue.
• Monitor run time: If the compressor runs almost constantly and the freezer never reaches set temperature despite clean coils and good gasket, a refrigerant leak or weak compressor is likely and requires professional service.