Readjusting temp on Grohe shower?

[gareth h]

My Grohe thermostatically controlled shower has got progressively cooler although there is hot water available, anybody able to advise how to recalibrate the temp control?
Ta
G

[dirkgently]

If you are mechanically bent you may be able to dismantle the thermostatic valve and descale it.YMMV

[nick_j007]

gareth h said:

My Grohe thermostatically controlled shower has got progressively cooler although there is hot water available, anybody able to advise how to recalibrate the temp control?
Ta
G

I have two of this make in the house and find that the one I use each day can sometimes 'run cool'. I have found that if you turn it all the way to the coolest and then hottest and then the temperature you want it resolves it. Give that a go? I have really quite soft water here so it's unlikely to be a scale issue.

HTH.

[Gingerbread Man]

Turn it from hot to cold, hot to cold, hot to cold a dozen times now and a then, this helps to break up any limescale. Might work for you if it isn't yet too bad.