I have a 60 gallon State Select electric water heater that is 4 years old.
Recently it started putting intermittently putting out out scalding hot water (160 degrees). This problem occurs about once a month.

I shut off the breakers and looked at the top and bottom thermostat and set both to the lowest temperature. It worked okay for two weeks,
but the scalding water problem started again.

I then tested both thermostats with a multimeter which indicated a zero reading on both.

I then tested both heating anodes with a multimeter and they both tested fine.

Any other suggestions on what the problem may be? Thanks for you help