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View the thread, titled "Replacing Grohe wireless shower control unit" which is posted in Showers and Wetrooms Advice on Plumbers Forums.

Hello
I need to replace my Grohe Geotherm shower cubicle mounted control unit.
Its around 17 years old but replacements seem to be available
The main hot / cold water control unit is in the loft, I think its working ok
How do I get the replacement cubicle control to connect to the loft unit wirelessly ?

Also the small remote has stopped working, not too worried about that

TIA 🙂
 
If you search online for the manual of your particular model, you should find the info you need.
I don't know if I've got the correct Geotherm model in the example below:
IMG_0463.jpeg
I assume the 'base unit' is the bit in your loft!
 

Reply to the thread, titled "Replacing Grohe wireless shower control unit" which is posted in Showers and Wetrooms Advice on Plumbers Forums.

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