Chosen Solution
My coffee comes out luke warm. It is not HOT
This could be caused by a worn out heating element, but one thing to try before taking the machine apart is to run a descaling solution though it.
https://www.keurig.com/descale-instructi…
I run a 12 ounce mug through it and it comes out too hot to drink. My wife runs a 8 ounce cup through it and she has to microwave it afterwards. Probably has something to do with where the temp cutoff switch is.