Changing the Bath NF SIRYO CHROME thermostatic cartridge

Using a flat screwdriver, unclip the cover to access the handle fixing screw.

Unscrew the fixing screw counterclockwise.

Before disassembling, check that the mark on the mixer tap is aligned with the "38°" position, then remove the handle.

Extract the thrust ring

Unscrew the thermostatic cartridge anti-clockwise using a 21 wrench.

Extract the cartridge by hand.

Insert the thermostat in the mixer body.

Screw in clockwise by hand.

Finish the tightening using the spanner 21.

Position the two lines marked on the stop ring facing the point of the mixer tap.

Turn on the water supply to proceed with the adjustment step.

Turn the diverter handle to run the water, then place a thermometer under the flow to check the correct temperature, which should be 38°.

If the temperature is not 38°, adjust by turning the wheel clockwise to decrease the temperature (-°C).

And counterclockwise to increase the temperature (+°C).

Align the reference point on the mixer body with the 38° mark on the handle.

Tighten the handle fixing screw using a Phillips screwdriver in a clockwise direction.

Replace the cover.