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
SY M P TO M
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
PO SS IB L E C AU SE
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
⁄ 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.
SUGGESTED ACTION
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 neces-
sary
Replace cartridge
Clean or replace volume control cartridge
Correct the plumbing
Replace the thermostatic cartridge
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