I live in a rental house and cannot get hot water to the shower. The tub has separate water faucets and gets hot/cold, but the shower might get luke warm. I have tried to adjust the handle control to no avail, please help

New delta shower valve barley any water coming out of shower head can take valve out and turn back on and have water tried two different valves same thing from both

I have a single handle Delta tub faucet w/o a shower. The faucet diverter for the non-existent shower has become engaged, the ring at the spout exit. With the pressure diverted to the non-existent shower, how do I get the pressure back to the spout? I've tried messing with the ring but to no...

Is there a site to find new delta shower plate and water on/off for old delta

I have adelta shower fct. That recently change the inside washers, put now I don't have any pressure coming out. What is wrong?