My daughter's gas hot water heater was replaced by a professional last fall and today I connected an ice/water supply line for her new refrigerator. Looked at the two water lines on top, one labeled "C" and uninsulated, the other labelled "H" with insulation. So I connected the tap to the "C" but the water that flowed into the refrigerator was hot, not merely warm. I then grabbed the insulated pipe (labeled "H" and it was cold to the touch.
Called the plumber who installed it and his explanations sounded kind of hokey, including a claim that hot water would be OK with the icemaker. In fact he said hot water freezes faster than cold (Zamboni's lay down hot water on an ice surface, true, but only because that allows the old ice with its chips and cracks to be filled in and produces a smoother surface) Anyway, I went out and got a second tap and installed it on the ACTUAL "C" line, the one labeled "H" and left the other one in place in a closed position.
Now to the worrisome part. Later my daughter told me he had said back when he installed the heater that all the lines in the hose were "backwards". Funny because they all work as they should, Hot produces hot and cold, cold. I guess everything would be OK except I stumbled across the 37 page thread about Whirlpool Flamelock water heaters. Guess which one my daughter has? It's been in service for maybe 5 months with no problems but is there anything we can do pro-actively to head off some of the thermocouple, gas valve problems associated with this infamous HW heater?