To Know How - GROHE

Thermostat shower mixer 19 359
Thermostat for bath and/or shower 19 356
Thermostat bath mixer 19 358
Maintenance instructions
Shut off hot and cold water supply!
Please perform disassembly in specified order. Assemble in reverse order.
Thermostatic compact cartridge:
1. Loosen screw ring using a 34mm tool.
2. If necessary, lever out thermostatic cartridge via
recess.
3. Screw off screw ring.
Observe the correct installation position for the thermostatic
compact cartridge.
Non-return valve:
1. Lever out caps and unscrew and remove screws.
2. Pull off temperature selection handle, shut-off handle
and scale rings.
3. Remove escutcheon.
4. Unscrew and remove screws and remove escutcheon
mounting bracket.
5. Unscrew and remove screw plug using an 8mm allen
key.
6. Pull out non-return valve.
Headpart:
1. Lever out cap and unscrew and remove screw.
2. Pull off shut-off handle, scale ring, splined adapter and
economy stop.
3. Unscrew and remove ceramic headpart using a 17mm
open-ended spanner.
Readjustment is necessary after each maintenance operation
on the thermostatic cartridge (s. Seite T 59/T 60).
Maintenance Aquadimmer, s. Seite T 55.
How to adjust economy stop, s. Seite T 64.
T 26