What is causing the high limit switch to pop on my electric water heater?
The limit switch wasn't adjustable and the water was getting quite hot regardless of the temp setting. The temps were set where they were supposed to be, but then it kept popping even after I set the temps to the minimum level "hot" setting (this was below the A,B,C area even). I ended up just replacing the top and bottom thermostats and so far so good....total cost of 24 bucks and about ten minutes work. Calling a plumber would have cost me about $125 for anything within the first hour of work.