Only cold water on my Bravo washing machine
More than a few times I have found water lines plugged at the entrance to the valve on the washing machine or at the connection to the supply valve.

Most washers come with screen filters to prevent chunks of material from getting stuck in the valve and flooding the home. 

I would turn the hot off, take the hose off at the faucet first if there is a screen is it plugged with rust, scale , pieces of the anode from the hot water tank? 
If no screen there check at the connection to the machine. After cleaning or replacing the screen I will usually get a bucket and high flow the water in the bucket to clear other debris out of the line. Normally washers are close to the water heater you may even feel the water get warm/hot with a gallon or 2 flush. Put the hose back on , check for leaks and see if that fixed the problem. I find it is the problem most of the time.