Help?! Snake has not eaten in a while...

Good Afternoon Everyone,

I have two snakes who have not eaten in over four months! I know it is common for snakes to go off feed, and not to be too worried if they are not losing a ton of weight, but regardless it has been four months already. My female Enchi is 750g and was last eating live rats and has not eaten, and my female normal at 2000g has not eaten and was also on live rats. I have not tried mice because they have been on rats for so long as it is. Any tips to get them eating and keep them on rats? Please let me know, thank you.

-Keith Gronsbell

Well first thing I gotta ask is what is the temperature/humidity and what are you using to measure it?

Ambient is 80, hot spot for the normal is 86 because she is in my breeding rack, and for the enchi it is 92. I am using a heat gun.

Make sure you monitor their weight to makr sure they dont lose too much. Also just look at the snake, you can tell when a BP is looking kinda skinny.