remember,, when they cool off after putting your eggs in,, and starts to heat up,, it will stop heating ( light will go out) before it gets up to temp, then the next time it goes on, it will heat up a little more, then stop,, then next time more.
i made the mistake of watching it till the light went out, it was still 10 degrees too low,, then i "adjusted" up more, then after the fourth adjust, it went WAY over. so once the eggs are in,, WALK AWAY!! and check it in 20 minutes, then adjust a VERY little,,, then walk away again.
i made the mistake of watching it till the light went out, it was still 10 degrees too low,, then i "adjusted" up more, then after the fourth adjust, it went WAY over. so once the eggs are in,, WALK AWAY!! and check it in 20 minutes, then adjust a VERY little,,, then walk away again.