My shower is too cold there is a sirrus ts 500 mixer on the outside wall how do I adjust it

Give us more info. What brand / type of shower faucet is it ? Do you have this problem all over house or is it located in this plumbing fixture only ? Any (any) work recently done on house plumbing ? Back to you. Milo

Thanks Milo for your response. Like I said in the initial post it is a Sirrus TS 500 temperature safety device. It is designed to mix the hot and cold water to the shower to minimize the chance of a child etc from being scolded. There is a plastic cap on the top that you can remove to adjust.You then have small hole but I don't know what tool to use i.e. Allen key or torque wrench Thanks in advance for any advice Ian

Hi Jan and welcome to The Plumbing Page at AskMeHelpDesk.com
I merged your posts and In the future if you have anything to add please add it on to the original thread instead of starting a new one. Thanks, Tom

Hi Jan and welcome to The Plumbing Page at AskMeHelpDesk.com
I merged your posts and In the future if you have anything to add please add it on to the original thread instead of starting a new one. Thanks, Tom
Oops sorry Tom will do

I am not familiar with the type of faucet you are dealing with - but in general, the temperature control ring in most of today's faucets is under the handle. We remove handle and either toss the ring or adjust it for more / less hot water. Visual would be great ! Back to you. Milo