Troubleshooting
Problem
Insufficient water
Crossflow: hot water forced into
cold water supply or vice versa
when mixture is closed
Output temperature does not
correspond with temperature
marked on handle
Safety stop button not operating
Handle hard to turn
Shower or spout dripping
Temperature regulation not possible (new installation) Hot and cold supplies
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.
26
Possible Cause
Supply pressure inadequate
Cartridge filters dirty
Showerhead or handshower filter dirty
Check valves dirty or worn
Handle not justified
Water heater set too low
Button and/or spring are dirty or worn
Cartridge dirty or worn
Volume control cartridge dirty or worn
are reversed
Thermostatic cartridge dirty or worn
Solution
Check water pressure
Clean the filters (see page 25)
Clean the filter
Clean check valves, replace if
necessary
Justify the handle
Increase the hot water temperature
Clean spring and button, replace if
necessary
Replace cartridge
Clean or replace volume control
cartridge
Turn the function block 180°
Replace the thermostatic cartridge
