Water Heaters - no water in kitchen

I had thermostat problems with my electric water heater. I Change both top and bottom and also replace the relief valve. Since I was working on the heater anyway i went ahead and drained it and filed it back up with fresh water after i completed my work. The heater works great and I have great hotwater pressure everywhere except the kitchen upstairs. I barely get a trickle out of this facet on the hot side, but the cold side is great. What could be the problem. BTW, the water heater is in the basement. I have 2 kitchens and 3 baths in the house and everything has good hotwater pressure except the upstairs kitchen.

Most likely you stirred up some sediment and it found it's way into your areator or valve underneath your sink. If you are lucky then just in the areator screen on the 'spout.' Remove that and try it. If not then you are looking at removing and cleaning the valve under the sink.

damcd, Welcome to the DIY Forums.
If it was a plugged aerator, neither hot nor cold would have good pressure. Turn off the hot water supply valve under the sink. Disconnect the supply tube at the valve. Cover the valve opening with a rag and turn it on and off 2 or 3 times. Tis should clear out any debris in the valve. As long as you have the supply line disconnected, hold a container under it and try turning on the cold water. Sometimes (not always) the cold will cross over in the faucet and backflush the supply line. If it doesn't flow water, reattach the hot supply line and turn on the valve. If you do not get pressure, you will have to disassemble the faucet to find whats clogging it. Good luck.
If you have a bicycle air pump, you could TRY forcing air from the end of the faucet (with aerator removed) through the hot water line while supply tube is removed and hot faucet open.