My shower is dripping. Two controls. I have unscrewed and exposed supply lever. Unscrewed but not removed thermostat. There is a safety push button. There isn't any sign of grub screw or alan key. I feel that I need to remove the button. I can't pull the handle off.
Unscrew the or usally a small cap covering the handle on the on off side with eather screw hole slotted or gub
Firstly, how long ago was the shower installed and is it still under warranty. If so then you probably shouldn't be touching anything. Secondly it is necessary to know how much experience do you have in plumbing. Even at a DIY level. It sounds condescending but to carry out the work you require you need to have at least a good level of experience of plumbing but not essentially the need to be a plumber. I will be happy to talk you through the process over the phone or if that's not possible then by message but I will need to know your level of experience and how you know what type of valve you are working with etc.
It’s a tough question for anyone with out looking at the valve itself
There are various possibilities here and it's best diagnosed upon inspection