i have a 7 month old hova bator 1602 that i have hatched out several hatches. now i cant get it to heat higher than 96 degress. please help. i changed the wafer with one out of another bator but not any better. thermostat is wide open. cycles on and off but wont heat any higher. even tried another thermometer. still not heating enough. please help. getting eggs mon. thanks tim