I have a Brizo Shower and can't get the water hot enought

If it is a pressure balance set of taps then your hot water limit stop is not set high enough. What brand of tap is it?

Limit message is when the output water set temperature can not be reached, this is normally when the incoming hot water to the shower unit is not sufficiently hot. Service code 20 is something else inside the unit that is faulty, it could be a number of faults. Try reset Power down unit and re-start, it will either say Wait or Priming, after that it should restart, hopefully it will work. If not, you could have a internal fault with: The mixer valve/motor, the flow control valve or motor, the flow sensor. If you have hot water from other taps, then the mixer valve/motor is the most likely fault. If you only have cold water only from the shower head with limit message it could be the Hot solenoid controlled valve is faulty. Good luck as there are no spares available!

Many single-handle shower mixers have a hot limit, usually limiting the throw of the handle. You could go to the mfg's website (www.deltafaucet.com) & find instructions for adjusting it. Or, if you're handy, you could take off the handle & have a look; it shouldn't be too hard to see what's stopping the handle from turning more towards the hot side. Make changes in small increments & remember where you started.

There is a safety limiter in the shower control. This essentially limits how far towards hot you can set the control. Yours sounds too low.

What you do is tape the drain, so you do not loose any small pieces, remove the lever handle, usually an allen, and then you can see what is limiting movement. Ususally a gear affair.

Scribe with a small scratcher, the current position, and Reposition it some in the direction you would thing gives more hot water...and test the hot temprature.... either you will have more or less, and then adjust accordingly.

WEll, the question is do your sinks have water that is hot enough? If no, perhaps your water heater is set too low. If yes, many shower controls have hot limiter and if you pull the handle, often there is a spline assembly that stops the travel from going hot, adjust to allow more.

the faucet has a scald proof device. remove the handle and adjust.

Pull apart the front of the valve and there is a limiter that is set to limit hte hot water, you need to adjust that limiter. I find many valves are shipped with teh setting too cold.

Remove handle and adjust the rotational limit stop. As you move the rotational limit stop counter clockwise it will increase more hot water in the mix.
Remember where it is before starting and pull in back onto shaft out of place so you can move it a little and put back into place. It should have marks to line up to get you different setting's. Just put handle on and turn on and check for desired hot setting.

The only way to adjust this is to pull it out of place due to it fitting in place like a gear and reinsert and check water.

try another setting

I have a triton trance shower not working with power and water both connected properly! low pressure light coming on and nothing happening????