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M A I N T E N A N C E
Use caution with skin contact to hot water
to reduce the risk of scald injury. Before
servicing the valve, turn the water off or at
the main shutoff.
⁄ Inspect the check valves 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.
T R O U B L E S H O O T I N G
SYMPTOM
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
possible
22
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 sup-
plies are reversed - should be hot/
left and cold/right
– Thermostatic cartridge dirty or worn
⁄ To prolong the life of the themostatic cartridge, regu-
larly run it through its full range of temperatures.
If the shower will not be used for an extend-
ed period of time, turn off the water to the
shower valve at the main shut off.
⁄ If you have questions, please contact Hansgrohe
Customer Service at 1-800-334-0455.
– 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
– Correct the plumbing
– Replace the thermostatic cartridge
SUGGESTED ACTION
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