Removal and Maintenance of Cartridge (see Diagram 6)
This thermostatic cartridge has screens to prevent dirt and unwanted particles from damaging the valve.
Clogged screens can cause reduced flow and inefficient temperature mixture by the valve. You can easily
clean the screens by following the instructions below.
1. Remove the trim by following the Trim Installation steps above in reverse.
2. Shut off the water inlets by tightening the two screws at the two check stop valves.
3. Pull off Stem Adapter (6) and Tooth Adapter (5) from valve and unscrew Thread Adapter (4) from
valve with a 23mm socket wrench or other adjustable wrench in a counterclockwise direction.
4. Unscrew Cartridge Nut (3) with a 23mm socket wrench or other adjustable wrench in a counter-
clockwise direction and gently pull out Cartridge (2).
5. Clean the screens and rinse with water. If necessary, soak in a 50/50 mix of white vinegar/ water or
a de-scaling agent until all dirt is dissolved. Grease the o-rings with a silicone based grease and wipe
the housing with a wet cloth before reassembling.
6. Reassemble the valve by reversing these instructions. Make sure the red dot on the temperature
limit stop ring and push button on the handle are both aligned in the 12 o’clock position.
Temperature may need to be reset as per instructions above.
Note: To prevent the handle from accumulating mineral build up which can cause the handle to “lock
up,”the handle must be turned on an occasional basis.
