We have a new (8 months old) 2019 Tuscany 45' Class A - We are new to camping period and have learned a ton - but this trip has been a long one with cold showers. The water in all the faucets is super hot - yet when we try to shower it's basically room temp turned all the way to hot. We've looked at everything we can figure to look at and it's almost like there is some regulator or something. we have Aqua hot and were promised endless hot showers :) Any suggestions or help would be greatly appreciated. TB & KE the Newbies

Not sure this matters but is there an outside shower?

I have no idea what kind of mixing valve you have on your shower but I'd suspect some debris in the line leading to the how water side. The easiest way I know of to make sure would be to drain the pressure on your system and remove the valve for inspection. Once the valve is removed, you could put a plug in the cold water line and a hose on the hot water side and pressurize the system and see what kind of flow is available to the shower. If you get a full stream with plenty of pressure, the problem is in the mixing valve and it would need to be backflushed, disassembled for inspection or replaced.

Dick_B wrote:Not sure this matters but is there an outside shower?Yes there is The only thing we've ever used it for is to rinse the sewer hose AND my husband noticed the knob are backward from normal aka hot to the right and cold to the left. Maybe???

Sometimes the external shower causes hot water issues, but that usually affects the hot water in the entire coach and not just the shower. But still I would make sure the outside shower is not at fault. Turn the outside shower on for hot and see if you get hot water there. Then make sure to turn off both the hot and cold knobs. As a bonus you can also use a Phillips head screwdriver and switch the knobs to the correct sides while you are out there. Use flat piece of metal (little flat blade screwdriver, a butter knife, a nail file etc) to pop the center caps out of the shower knobs. Then use the Phillips screwdriver to remove the center screw and pull the knobs off and swap them.

DFord wrote:I have no idea what kind of mixing valve you have on your shower but I'd suspect some debris in the line leading to the how water side. The easiest way I know of to make sure would be to drain the pressure on your system and remove the valve for inspection. Once the valve is removed, you could put a plug in the cold water line and a hose on the hot water side and pressurize the system and see what kind of flow is available to the shower. If you get a full stream with plenty of pressure, the problem is in the mixing valve and it would need to be backflushed, disassembled for inspection or replaced.I agree it is very likely a mixing valve problem. Not only could it be debris in the lines it could also be the valve itself has a defective anti- scald component. Nothing special about RV plumbing, so any plumber should be able to fix the issue if you aren't comfortable doing it.

Thor Tuscany - water is hot everywhere but the shower!

13 Replies

TB_KE
Explorer
Mar 07, 2020
Dick_B wrote:
Not sure this matters but is there an outside shower?

Yes there is The only thing we've ever used it for is to rinse the sewer hose AND my husband noticed the knob are backward from normal aka hot to the right and cold to the left. Maybe???
DFord
Explorer
Mar 07, 2020
I have no idea what kind of mixing valve you have on your shower but I'd suspect some debris in the line leading to the how water side. The easiest way I know of to make sure would be to drain the pressure on your system and remove the valve for inspection. Once the valve is removed, you could put a plug in the cold water line and a hose on the hot water side and pressurize the system and see what kind of flow is available to the shower. If you get a full stream with plenty of pressure, the problem is in the mixing valve and it would need to be backflushed, disassembled for inspection or replaced.
Dick_B
Explorer
Mar 07, 2020
Not sure this matters but is there an outside shower?

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Thor Tuscany - water is hot everywhere but the shower!

13 Replies

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