Original problem: on a concealed 2 dial (on/off, temperature) shower mixer I could get the On/Off dial off easily but the temperature one wouldn't budge (like there was something else holding it on), despite loosening/removing the screw with an allen key. I had two of these (manufacturer unknown, I inherited on purchasing the house this year) with the same symptoms.
The reason I removed it was, I followed another post suggesting WD40 wherever possible and leaving it for an hour or two (though I don't have it to hand now - I looked at a LOT of posts this morning!) before brute-force pulling/wiggling it off.
I posted after two brute force attempts. The third attempt worked!
If you need to find a tradesperson to get your job done, please try our local search below,
or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Please select a service and enter a location to continue...
Are you a trade or supplier? You can create your listing free at DIYnot Local