My wife and I just bought a brand new house in February, a split level in a new development with an unfinished basement. My kitchen is directly above the utility room, where the water main enters my house and the water heater, furnace, and washer/dryer live. Anyway, ever since the day we moved in, I've noticed that the cold water in my kitchen faucet runs full hot for a few seconds before going to cold. This happens whether the faucet is on full cold or anywhere else on the cold side. It's a single lever Kohler faucet. I'm pretty sure it has something to do with the water heater itself, since the cold water in pipe to the heater is too hot to touch for a good 3' back from the heater. Also, when the cold runs hot, and I touch the cold water pipe below the sink, that feels hot as well. After 3-5 seconds of hot water, it goes to cold, and stays cold until you turn the faucet off. But as soon as you turn it on again, it does the same thing. There's some sort of Honeywell temperature control valve thing hooked up to both the cold water in and hot water out ports on the water heater. Could that possibly be leaking? Or could my water heater itself be flowing back through the cold input? My water heater is a 100 gallon lifetime plastic Richmond heater, if that makes any difference. None of the other fixtures (outdoor spigot that hooks in between the water main and the water heater, bathroom sink, toilet) run hot at all. It wouldn't really be a big deal to me, but I hate letting all that hot water run down the drain whenever I want a cool glass of water. Is there anything I can do to fix this? Thanks in advance for any help.