LG and Samsung dominate Indian kitchens, and both build reliable refrigerators. But when cooling fails, each brand has a few characteristic causes. Here's a brand-aware guide — starting, as always, with the checks you can do yourself.
First, the Universal Checks
- Confirm the power supply and that the fridge is switched on (check the display)
- Make sure the temperature setting hasn't been changed accidentally
- Clean the condenser coils at the back — dust buildup in Chennai's air reduces cooling
- Ensure there's clearance around the fridge for heat to escape
- Check the door seals close fully
LG Refrigerators — Common Cooling Faults
Linear/Inverter compressor issues: LG's linear compressors are efficient but a known failure point on some older models. Signs include the fridge running but not cooling, with a warm compressor. This needs professional diagnosis — sometimes it's the compressor, but often it's the start relay or the inverter PCB, which are cheaper fixes.
Sensor faults: LG fridges rely on temperature sensors; a faulty sensor can stop the compressor from running correctly. Many LG models show an error code when a sensor fails.
Samsung Refrigerators — Common Cooling Faults
Freezing / defrost sensor: Samsung frost-free models can build up ice on the evaporator if the defrost sensor or heater fails, blocking airflow to the fridge section. A common sign is the freezer working while the fridge stays warm.
Twin-cooling fan faults: Samsung's twin-cooling designs use fans to move air; a jammed or failed fan stops cooling reaching one compartment.
Error codes: Samsung fridges display codes for sensor and fan faults — note the code before calling, as it speeds up the repair.
Check Warranty First
Both LG and Samsung offer long compressor warranties (often 10 years). If your fridge is within the compressor warranty period, the part may be free — you'd typically only pay labour and gas. Keep your purchase invoice handy.
When to Call a Technician
If the coils are clean, settings are correct, and the fridge still won't cool — or you see an error code or heavy internal frost — it's an internal fault (compressor, relay, fan, sensor, or defrost). These need proper diagnosis rather than guesswork.
RK Aircon repairs LG, Samsung, and all other refrigerator brands across Chennai, with honest diagnosis — we confirm whether it's a cheap relay or a genuine compressor fault before quoting.