I am trying to control my Peltier module using the W1209 TEC. I set the P0 to H, so that it should provide voltage to my Peltier module until the temperature reaches the set temp. The LED turns on indicating that the load should be turned on, but when I checked there was no voltage between pins K1 and K0, or between either of them and the GND.
I connected 12 VDC supply to pin +12V and GND. I tried different ways to connect my load. I connected it between pins K0 and K1, I also tried using a jumper cable between pins K1 and +12V with the Peltier module attached to K1 and K0, and I also tried the positive of battery being connected to K1 and +12V, its negative connected to ground, and the Peltier module connected to K0 and GND. None of them worked.
Does anyone have any ideas as to what I might be doing wrong? The Peltier module works when connected directly to power supply.