i just hooked up my thermostat last night and it doesnt appear to be working. I set it to mid and left it on for an hour or two and the temp didnt change so i moved it down to low and its been at that setting for about 24 hours with no change in the temp at all. Its a repitemp 500r and im thinking its crap. This happened to e once before with a rheostat... is it possible that theres something wrong with my heat pads or does the thermostat just suck?

thanks