Recently I ordered a Peltier unit online and received it yesterday. Naturally, I was very excited to play with it. When I first turned it on, One side got hot, an another very cold. I had read that I should attach a heat sink to the hot side of the unit. So straight away, I attached a heat sink and a fan to the hot side (The fan is pulling air out).
I also added a heat sink to the cool side. However, both sides started getting very hot. I have tried reversing the polarity, changing the fan to push, and used voltages from 4 to 12. After nothing worked, I removed the heat sink on the cold side, But still, both side remain stubborn and insist on getting painstakingly hot.
Anyone got Any Ideas as to what's wrong?
Also, If it helps, at 12v the unit is using roughly 2A...