User guide
14
Maintaining the Non-Return Valves
The non-return valves are located in the valve body, and are accessible through
the inlet connectors.
Caution! Ensure that the non-return valves are installed correctly to prevent
crossfl ow or malfunction of the valve.
1. With the water supplies turned off
and the thermostatic mixer removed,
remove the washer, the circlip and the
fi lter.
2. Remove the non-return valve and
clean any debris.
3. On reassembly ensure that the non-
return valve is fi tted the correct way
round (with the arrow indicating the
fl ow pointing towards the mixer).
Filter
The inlet fi lters are located in the inlet connector. Clean or renew as necessary.
Thermostatic Cartridge
In hard water areas the fi lters in the thermostatic cartridge may become blocked
with limescale, which will reduce the fl ow of water. It is recommended that the car-
tridges are checked regularly and cleaned in a descaling solution (such as kettle
descalent) if necessary. Be sure to follow the manufacturer’s instructions on the
descalent package.
Note! The cartridge is non-servicable and will require replacement should failure
occur.
Flow Arrow
Non-return Valve
Circlip
Filter Washer










