Micromark Fans

My Micromark soft drinks has ceased its cooling effect. This is the guy who has a fan in the back and a heat sink, with a little circuit board that provides the cooling effect. He used to get quite cold, and at one point there was even the formation of ice on the back inside, but now he stopped and became hot. The light on the work back, and so does the fan. But no cooling. Any ideas anyonea Regards, Wyn

the heat sink is supposed to warm up - thats how it is designed to work. if the heat sink didn't get warm, units busted
there a "hot / cold switch on what could be achieved moved from" hot ". mine does to keep things warm if necessary.

if it suddenly started running in front, something happened and the unit will probably need some repairs, but given the way the units are cheap, go get a new

cooler probably has a peltier to do things cold if you reverse the son + and -, then it will heat and cold will be outside. Make sure you havent messed son or something. Im guessing that you use in your car or something that runs on a DC voltage.

where it connects to the unit should be a red dot on one side and blue on the other and there should be a mark on the plug and you surely on red. return it until the mark is on the blue