This started a couple of days ago. The hot water is coming out scolding hot and then there is no hot water. I assume the water ehater is heating the water to much and then shutting down. I went in and reset the heater but the problem is still happening. My final attempt before either attempting to do some serious work on the water ehater itself or calling in a repairman was to turn the settings down. Any helpful advice would be greatly apreciated. TIA.