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
cross 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
lter.
2. Remove the non-return valve and
clean any debris.
3. On reassembly ensure that the non-
return valve is tted the correct way
round (with the arrow indicating the
ow pointing towards the mixer).
Filter
The inlet lters are located in the inlet connector. Clean or renew as necessary.
Thermostatic Cartridge
In hard water areas the lters in the thermostatic cartridge may become blocked
with limescale, which will reduce the 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