26
T R O U B L E S H O O T I N G
PROBLEM
POSSIBLE CAUSE
SOLUTION
Insufficient water
Supply pressure inadequate
Check water pressure
Cartridge filters dirty
Clean the filters (see p. 24)
Showerhead or handshower filter
dirty
Clean the filter
Crossflow: hot water forced into
cold water supply or vice versa
when mixture is closed
Check valves dirty or worn
Clean check valves (see p. 24),
replace if necessary
Output temperature does not cor-
respond with temperature marked
on handle
Handle not justified
Justify the handle
Water heater set too low
Increase the hot water temperature
Safety stop button not operating
Button and/or spring are dirty or
worn
Clean spring and button, replace if
necessary
Handle hard to turn
Cartridge dirty or worn
Replace cartridge
Shower or spout dripping
Volume control cartridge dirty or worn Clean or replace volume control
cartridge
Temperature regulation not
possible
(new installation) Hot and cold
supplies are reversed - should be hot/
left and cold/right
Turn the function block 180° or
correct the plumbing
Thermostatic cartridge dirty or worn
Replace the thermostatic cartridge
⁄ Inspect the check valves and filters at least once
per year. Replace if dirty or worn.
⁄ Should the volume of water decrease over time,
inspect and clean the filters on the thermostatic
cartridge. After reassembly, set the high tempera-
ture limit stop and justify the handle.
⁄ To prolong the life of the themostatic car-
tridge, regularly run it through its full range of
temperatures.
MAINTENANCE
