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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
Maintenance
• 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 tem-
perature limit stop and justify the handle.
• To prolong the life of the themostatic cartridge,
regularly run it through its full range of
temperatures.
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
(new installation) Hot and cold supplies
are reversed - should be hot/left and
cold/right
Thermostatic cartridge dirty or worn
Solution
Check water pressure
Clean the filters
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° or correct the
plumbing
Replace the thermostatic
cartridge
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