Cleaning The Thermostatic Cartridge - Aqualisa SIERRA Installation And User Manual

CLEANING THE THERMOSTATIC
CARTRIDGE
See image page 12.
1. Before carrying out any maintenance, ensure the water supplies are
isolated. Once isolated, turn the shower on to release internal pressure.
If unsure contact a qualified tradesman.
2. Carefully remove the control handle cover cap by inserting a small flat
bladed screwdriver into the slot (located at the 6 o'clock position) and
levering out.
3. Using a 10mm hexagonal key, undo the brass retaining nut and remove the
control handle.
4. Remove the large brass locking nut using a suitable spanner.
5. Pull forward and remove the brass temperature limiter ring.
6. Prior to removing the cartridge, take note of its orientation as it must be
refitted the same way. We suggest making a mark at the 12 o'clock position
on the cartridge assembly.
7. For ease of removal, temporarily refit the control handle and pull the
cartridge free from the valve body . Rinse the cartridge under cold water
to remove any debris or limescale build up.
8. If necessary, replace the cartridge. A replacement cartridge can be
obtained by contacting customer service on 01959 560010.
9. Refit the cartridge into the valve body by lining up the two keyways
(located at 3 and 9 o'clock) and ensuring the positioning mark (made in
point 6) is at the 12 o'clock position.
10. Insert the temperature limiter ring by lining up the two keyways, and
ensuring the raised tab is at the 8 o'clock position.
11. Refit and tighten the large locking nut and place the control handle
back into position (lever at the 6 o'clock position), followed by the brass
retaining nut.
12. Fit the cover cap by pressing into position.
13. Reinstate the water supply and ensure there are no leaks.
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