old and common problem but bear with me

[wave man]

I've not had a hot shower yet in my 2018 FC, it's been warm - but not hot - and I didn't know that I maybe ought to be expecting to have a hot shower (for at least a couple minutes )

I just kinda figured it's an RV and maybe that's what ya get...

But...reading lately has made me wonder. ... Should I be expecting a HOT shower albeit brief with the 6 gal tank?

And after researching the forum I'm inclined to look at the shower cartridge, since I have nice reasonably hot water at the other sinks. Am I right here?

Believe it ought to be a Moen being a FC2018 that's my understanding...

Am I deducing the most likely avenue here to investigate folks? I have not tampered with any plumbing, valves, or anything related to the water heater ...I'm not handy capable so I appreciate the tips and advice folks, hell, I NEED them heheh

[rmkrum]

Some Moen shower valves have a little 'limit stop' that is a part of the valve. It's intended to prevent scalding hot water from getting to you. If the limit stop is maladjusted, the knob will come to a 'hard stop' before the water gets nice and hot.

The limit stop is usually part of the sleeve under the knob. Unscrew the knob and see if there is an elongated slot with a screw or hex capscrew in it. That is the adjustment part. Loosen, but do not remove the screw, and slide it as far counterclockwise as it will go, put the knob back on, and see if the water can be adjusted hot enough. If it's uncomfortably hot, slide the screw (and stop) back toward the other way a bit. That may be part of the problem.

The other possibility, if you have a separate outside shower system, is that the valves may be on, and the shower head shut off. Check that both valve handles are OFF. If they are letting water flow, the hot water will mix with cold at that faucet, and possibly make your inside shower run cold.

[A W Warn]

The shower faucet is supposed to be set at 120F or lower, to keep people from burning themselves if they accidentally turn the faucet while in the shower. The temperature of water in an RV water heater will BURN skin.
Take a look at this, but adjust with safety in mind.

https://www.youtube.com/watch?v=3EYCDcCNK3w

[rmkrum]

For Moen faucets with the transparent plastic knobs, use fingernails or a thin dull blade to gently pry off the cap with the "Hot/cold graphics" on it. Under the cap is a phillips screw. Remove that, and that should expose the adjustment part...either the two-piece plastic part shown in the video, or the little 'slider' I was taking about...

[wave man]

Thanks fellas this looks promising, and new information I hadn't seen before! I'm hopeful to have hot showers sometime soon Will keep ya posted

[Rob Cope]

My FC 25 2016 produces water that is too hot for me. Is there a way to turn some sort of control at the heating tank to lower heat? Anyone?

[MWBishop]

The water heater produces DANGEROUSLY HOT water - so it must be the adjustment. Ultimately when showering the hot and cold water mix to be non-scalding therefore you should get way more than 6 gallons of "hot" water for a shower. Just keep an eye on that gray-tank though - long showers contribute quite a bit.

[75Bob]

Rob C If your water is way to hot just adjust it before entering. Hot water is a good thing. If your afraid a child could get burned then follow A W Warn's 2 minute "how too film". Except instead of turning the dial up turn it down. Do a little turn, test the water and repeat.

[wave man]

A quick update even though it's been a while.
My hot water mysteriously began to seem hotter before I could begin the task of one of the fixes above, without me doing a thing to it. I decided to leave well enough alone and am content.
Go figure...