Fridge Not Cooling Before Weekly Shop

Your fridge has gone warm and you have a full shop sitting in it. Tell it the temperature, the freezer state, the brand and any odd noises, and it triages the problem fast: door seal, condenser coils, evaporator fan, thermostat. For each step it tells you exactly what to look and listen for before you call anyone out.

My fridge has stopped cooling properly. The temperature inside is around {CURRENT_TEMP_C} degrees C and I've got a full shop in there. The freezer compartment {FREEZER_STATUS}. The fridge is a {FRIDGE_BRAND} and it {ANY_NOISES}. Triage this for me right now. Start with the fastest, cheapest checks: door seal, condenser coils, evaporator fan, thermostat. Tell me what I'm listening and looking for at each step, whether each fix is DIY-safe, and at what point the repair cost likely exceeds the cost of a new fridge.