I got a PC fan and put it in the bator and.......

[RooptyDoo]

I have a LG incubator that has been holding temps well. It has been around 100-101.5. I bought a PC fan yesterday and wired it up and stuck in there (I was planning on putting the eggs in there tonight). I went and checked on the bator and... Are you ready for this all 3 of my thermometers said.... 138.8 degrees

. Why is it so high? It was just fine without the fan in it. I just don't get it. So I dont think that I will be using a fan in that incubator.

 

[rooster-red]

Did you wire the fan to a 12 volt power source or did you use the bators wiring?

 

[jvls1942]

just turn the heat down.. your motor is probably adding heat.

 

[RooptyDoo]

We wired it to a 12 volt power source.

 

[shelleyd2008]

The fan motor is probably creating the heat. You will probably have to take the fan out if it's making that much heat. I don't think you could turn it down enough to make a difference.

You could also try hooking it up to a lower volt adapter, that would make it run slower, thus decreasing the heat output..

 

[rebelcowboysnb]

Read this post
https://www.backyardchickens.com/forum/viewtopic.php?id=119737

I would unplug the incubator an leave the fan plugged in. If the temp does not drop your fan is getting hot but if it does its a thermal layering or the lack of thermal layering thats the issue an you need to readjust the thermostat.