29
Troubleshooting
Problem
Possible Cause
Solution
Insufficient water
-Supply pressure inadequate
-Check water pressure (If a pump has
been installed check to see if the pump
is working).
-Regulator filter dirty
-Clean filters
-Handshower filter seal dirty
-Clean filter seal between handshower
and hose
Crossflow, hot water being forced into
cold water pipe, or vice versa, when
mixer is closed
-Check valves dirty or worn
-Clean check valves, replace if neces-
sary
Spout temperature does not correspond
with temperature set
-Thermostat has not been adjusted
-Justify the handle
-Hot water temperature too low
-Increase hot water temperature
Temperature regulation not possible
-Thermostatic cartridge dirty or worn
-Clean thermostatic cartridge, replace
if necessary
-For new installations: rough valve
incorrectly connected (should be: cold
right, hot left)
-Rotate function block 180°or correct
the plumbing
Safety stop button not operating
-Spring dirty or worn
-Clean spring and/or button, replace if
necessary
-Button calcified
Shutoff valve stiff
-Select shutoff valve DN9 dirty or worn -Replace Select shutoff valve DN9
Shower or spout dripping
-Select shutoff valve DN9 dirty or worn -Replace Select shutoff valve DN9
Pushbutton cannot be actuated or is
without function
-Safety guard of on-off valve has not
been removed
-Remove safety guard from isolating
valve
Pushbutton is jammed or stiff
-O-ring needs to be lubricated
-Lightly lubricate the o-ring using white
plumbers' grease
Pushbutton does not snap in
-Select Adapter trimmed incorrectly
-Trim and mount Select Adapter accord-
ing to Fig. 7 (see page 8)
-Press the pushbutton into the escutch-
eon, then mount the escutcheon.
Maintenance
• Inspect the check valves at least once per year.
Replace the check valves if necessary.
• Should the volume of water decrease over time,
inspect and clean the filters on the thermostatic
cartridge. After reassembly, set the high temperature
limit stop and justify the handle.
• To prolong the life of the themostatic cartridge,
regularly run it through its full range of temperatures.