17
Troubleshooting
Problem
Possible Cause
Solution
Insufficient water
Supply pressure inadequate
Check water pressure
Cartridge filters dirty
Clean the filters
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,
replace if necessary
Output temperature does not
correspond 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 sup-
plies are reversed
Turn the function block
180° OR correct the
plumbing
Thermostatic cartridge dirty or worn
Replace the thermostatic
cartridge
