Unplug before removing panels and protect chilled or frozen food
Fridges and freezers contain mains electricity, moving fans, hot compressor parts and sealed refrigeration systems. Stop use if the appliance trips, smells burnt, leaks near electrical parts or the compressor repeatedly clicks.
MOST LIKELY CAUSES
Start with these
Symptom variations Match the exact cooling, icing or leak pattern. ⌄
- Scraping inside freezer
- Rattle stops when fridge is touched
- Repeated clicking every few minutes
- Buzzing from rear
- Noise changes when door opens
Quick checks Simple checks before removing panels. ⌄
- Record the actual temperature if possible.
- Check the control setting and operating mode.
- Inspect door seals, vents and visible frost.
- Listen for the fan and compressor.
- Unplug before cleaning coils or touching internal parts.
Step 1 — Identify where and when the sound occurs Switch off and unplug before removing covers or touching internal parts. ⌄
Process
Note whether it changes when the door opens or compressor starts.
Step 2 — Check level and clearance Switch off and unplug before removing covers or touching internal parts. ⌄
Process
Make sure the appliance is stable and not touching cabinets or walls.
Step 3 — Check for visible ice buildup Switch off and unplug before removing covers or touching internal parts. ⌄
Process
Look for frost near vents and the rear freezer panel.
Common causes explained Why fridge and freezer faults develop. ⌄
Buzzing, rattling, scraping and clicking can come from fans, ice contact, pipe vibration, compressor start attempts, loose trays or normal refrigerant movement.
Temperature patterns provide the strongest clues. Localised freezing suggests airflow or sensor issues, widespread warming points to fan or refrigeration faults, and recurring ice often indicates a seal or defrost problem.
Advanced diagnostics Appliance-engineer checks and repair work. ⌄
- Inspect evaporator and condenser fans.
- Check compressor start relay.
- Secure pipes and cabinet panels.
- Measure compressor current draw.
- Inspect ice-maker and damper mechanisms.
Parts that may need replacing Common components linked to this fault. ⌄
- Evaporator fan
- Condenser fan
- Compressor start relay
- Fan blade
- Mounting grommet
When to call an appliance engineer Conditions that should end basic troubleshooting. ⌄
- The appliance trips the electrics.
- The compressor repeatedly clicks or becomes excessively hot.
- Internal electrical testing is required.
- The sealed refrigeration system may be faulty.
- Water is reaching electrical parts.
- Food temperatures remain unsafe after basic checks.
Frequently asked questions Common fridge and freezer questions. ⌄
How long should temperature changes take?
Allow several hours after a small adjustment and up to 24 hours for full stabilisation.
Can I remove ice with a knife?
No. Sharp tools can puncture the evaporator and permanently damage the refrigeration system.
Should I keep resetting the electrics?
No. Unplug the appliance, protect the food and arrange fault testing.