I think my 15 year old LG has finally bit the dust... it heats up to around 88% and that's it. I think either the thermostat or rheostat is toast - leaning more towards the rheostat since when I turn the knob to increase the temperature, the light goes OUT instead of lighting up, and when I turn it the other way to decrease the temperature, I find a 'sweet spot' where it comes on, but turn past that and it goes out. Finances are tight, buying a new 'bator is not an option, not even a $40 replacement LG. I could use my cooler bator, but the auto turner is sooooo nice, plus having a hatcher AND a 'bator is ideal since I"ll be doing turkeys AND chickens. I"m not afraid to tinker with it, and even bough a hot water heater thermostat thinking that would be a suitable replacement, but then read that style thermostat works off radiant temps (like my cooler 'bator), not ambient temps. HELP!