Very low water pressure for hot water from pump
Just got our 2012 out of storage, and while sanitizing the fresh water system, I noticed that there is very little pressure on the hot side of the faucet.
When the faucet is full-on cold, the pump revs up and there is decent pressure. When it is full-on hot, the pump runs, but it revving very low. This is most noticable at the kitchen faucet, but happens on all of them.
When hooked to city water, there was a difference between full-on hot and cold, but it was not as pronounced.
My guess is there is some blockage in the hot water line someplace.
Any suggestions on diagnosing and fixing myself? Or do I need to take it in?
We are using it this weekend (don't need the pump) and then again in 2 weeks (definitely DO need the pump).
Thanks in advance!