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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 cor-
respond with temperature marked
on handle
Safety stop button not operating
Handle hard to turn
Shower or spout dripping
Temperature regulation not pos-
sible
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
temperature 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 — Clean or replace volume
— (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
control cartridge
— Turn the function block
180° or correct the
plumbing
— Replace the thermostatic
cartridge
17
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