Freezer not freezing properly while refrigerator compartment remains cool or slightly warm.

Safety warning: Refrigerant system repairs require specialized tools and certification. Do not attempt to open the sealed system yourself.

User-level checks:

• 1. Verify door seals: Ensure freezer door gasket is sealing all around. Replace if torn or deformed.
• 2. Clean condenser: Vacuum dust from the condenser coil at the rear or underneath. Poor heat rejection can mimic low charge.
• 3. Listen to compressor: Confirm the compressor runs steadily and does not short-cycle.
• 4. Check frost pattern: With the rear freezer panel removed (and unit running), a healthy system shows even frost across most of the evaporator. Frost only on the first few coils near the inlet often indicates low refrigerant or restriction.

Action: If a sealed system issue is suspected (uneven frost, hissing, oil stains), contact a certified refrigeration engineer to locate leaks, evacuate, and recharge the system or replace the compressor/evaporator as needed.