Sudden low hot water pressure

[04montana5]

Hi I’m new to this site, I was relieved to find a resource with other owners as I am new to living in a fifth wheel and know very little.

I have a 2004 Montana, a day ago the hot water pressure dropped. I took a shower with full pressure then went to shave and the hot water pressure was reduced by like 5 times.The cold water has full pressure, but hot is super weak. I had just filled up my water tank that morning and swapped my propane tanks. I usually run on the electric heater and haven’t had a problem in the last year I owned it. Any idea how to fix this or trouble shoot? Hot water is still coming out but the pressure is just super low.