Micro Mini Fridge

Micro Mini Fridge

How Cool Micro mini refrigerator works and how can I fix it myself?

I bought a micro Cool mini fridge in the garage sale several months ago for $ 1. This is great small refrigerator that fits 4 soda and sandwich inside. Recently, it stopped working. When you turn the switch, the light of side of the refrigerator is turned on, but fan not rotate. I got a refrigerator from one another but I do not understand how it works. She has no compressor motor as a normal fridge .... everything there is a radiator with a small block of metal underneath positive and negative wire movement it .... maybe a magnet? There is also a fan that spirit in radiator which turns very slowly, now that It is used to turn quickly. Maybe the transformer of the power cord is just bad. But anyway, I would like to understand how this works refrigerator.

This refrigerator uses thermoelectric cooling technology. He uses this which is called the Peltier chip, which is mainly to heat and it moves from one side the chip to another, where electricity apply. If given polarity is applied Peltier chip to the opposite sides will receive a warm / cold, respectively. In other words, if you have to be paid to that polairy you could make into force on the fridge warmer and radiator will blow cool air. It is not likely your cooling arise because most of this fan not rotate fast enough to dissipate warmth of the hot side of the Peltier. If heat can not be withdrawn Cold country "will not be cold. Try spinning hand fan, it spins freely? If so its power / Question voltage, which will also contribute the problem, if not getting enough peliter volts / amps it will not work correctly. If the fan is hard to spin does not looks like its mandatory top or sticking bearing is probably bad and he will have to be replaced. Standard 80 millimeters computer fan can work if the power adapter voltage is 12V. You can also test your adapter, if multimeter you through the creation of DC level volts, and measuring what comes out on 2 needles.