I'm trying to problem solve and having little luck. I have a hovabator 1588.... it wont come down to 100... it stays idle at 104.. the fan comes on, the red light wont blink to show optimal operating temp, stays lit. I've reset all toggles, and set to 1.. still wont budge . I've even tried turning all toggles to off.. brought down 1 degree. Do you think the thermostat is junk? I have three thermometers in it to confirm temp. All reading same thing. Any suggestions? I hate giving up... but, my only options may be to. I've considered drilling a hole thru the styrofoam the size of the red plugs to allow some heat to escape and bring to the temperature for the light to blink. We have many ducks laying and I'd like to try incubating. Any suggestions? I found a thermostat/ fan kit online for that model for 65 dollars.. but not sure also if worth moving up to the digital one and tossing this one. I hate throwing something out that can be saved.