Why does my fridge not cool,the fan doesn't kick on and the black little tank gets really hot?
A fridge operates due to adiabatics, which is the ability of a gas to absorb energy by compression, which turns to heat, then dispel heat by evaporation. The little black tank is a compressor which compresses the gas in the condensation loop. When the gas is compressed it heats up, so the little back tank will get hot, as will the condensation grid, often at the back of the fridge, which acts like a radiator to cool down the gas inside. When the gas is evaporated into the evaporation loop, it expands again and any rise in temperature caused by the compression will be lost. Add to this loss in temperature caused by the radiator and you have a total net loss in temperature which is significantly cooler than what you started with.
The problem with your fridge has to start with the fan not working as this fan will help to cool the condenser radiator, unless it is a fan inside the unit itself which just distributes the cool air. (without knowing the make an model of the fridge I cannot determine the reason for the fan). Modern low energy fridges have a better and more economical set-up and it seems that your fridge has seen better days. The compressor is clearly working overtime to get so hot and particularly if it never seems to shut down or the fridge cool down. Sadly, I think it's time for a new fridge. You'll save the money you are currently spending on the electricity to run the old one.
Sep 19, 2015 |