I have hot water to all the fixtures in my home (Kitchen, Laundry, Bath) most of the time, but occasionally, when I go to turn my hot water on in my bathroom sink faucet, I get nothing. The cold will work. The hot & cold will work in every other fixture at the same time, but only the hot water to that fixture will stop working. I am stumped because eventually it will come back on without me doing anything. Can someone shed some light on this please?

What's the brand name, type of faucet,(one handle or two knobs) and its age? Back to you, Tom

It is a 2 handle Glacier Bay, and not even a year old. I installed it myself and can do most of my own plumbing work, although I stay away from Boilers and water heaters. Does it sound like a hardware problem?

Yes it does sound like a hardware problem and I'll bet Tom has a diagram for you tomorrow morning.