Questions & Answers for: Koolatron blue dots

...there a switch or is there a problem with the unit Check the power cord. It should have a red and blue dot. For heat line the red dot with the arrow, for cooling. line the blue dot with thw ...

does not cool Check you power line. It should have a blue and red dot on it. For cooling line the blue dot up with the arrow on the conector. For warming change to the red dot. If the unit is not ...

My Koolatron cooler runs but is not cooling. What could be the problem. I have tried red and blue dot but nothing changes. Peltier went bad and they usually do. Easy to replace but you will need ...

...of the power cord connection. One end of the power cord has an arrow, the other end has a blue dot on one side and a red dot on the other. For cooling, connect power cord ends so that the ...