M A I N T E N A N C E
⁄ Should the volume of water decrease over time,
first inspect and clean the showerhead(s). If the
problem persists, inspect the cartridge.
⁄ To prolong the life of the thermostatic cartridge,
regularly run it through its complete range of
temperatures.
⁄ At least once per year, inspect the check valves.
Replace if dirty or worn.
Use caution with skin contact to hot water to
reduce the risk of scald injury. Before servicing
the valve, turn the water off using the stops on
the iBox Universal Plus or at the main shutoff.
T R O U B L E S H O O T I N G
SYM PTO M
Insufficient water
Crossflow, hot water being forced into
cold water pipe, or vice versa, when
mixer is closed
Spout temperature does not corre-
spond with temperature set
Temperature regulation not possible
Safety stop button not operating
Shutoff valve stiff
Shower or spout dripping
Pushbutton cannot be actuated or is
without function
Pushbutton is jammed or stiff
Pushbutton does not snap in
30
⁄ When reassembling after maintenance, set the
high temperature limit stop before reinstalling the
handle.
⁄ If the shower will not be used for an extended pe-
riod of time, turn off the water to the shower valve
by using the service stops in the iBox Universal
Plus rough, or at the main shut off.
⁄ If you have questions, please contact Hansgrohe
Customer Service at 800-334-0455.
P O S S I BL E C AUS E
Supply pressure inadequate
Regulator filter dirty
Handshower filter seal dirty
Check valves dirty or worn
Thermostat has not been adjusted
Hot water temperature too low
Thermostatic cartridge dirty or worn
For new installations: rough valve
incorrectly connected (should be: cold
right, hot left)
Spring dirty or worn
Button calcified
Select shutoff valve DN9 dirty or worn Replace Select shutoff valve DN9
Select shutoff valve DN9 dirty or worn Replace Select shutoff valve DN9
Safety guard of on-off valve has not
been removed
O-ring needs to be lubricated
Select Adapter trimmed incorrectly
RECOMMENDED ACTION
Check water pressure (If a pump
has been installed check to see if the
pump is working).
Clean filters
Clean filter seal between handshow-
er and hose
Clean check valves, replace if
necessary
Justify the handle
Increase hot water temperature
Clean thermostatic cartridge, replace
if necessary
Rotate function block 180°or correct
the plumbing
Clean spring and/or button, replace
if necessary
Remove safety guard from isolating
valve
Lightly lubricate the o-ring using white
plumbers' grease
Trim and mount Select Adapter ac-
cording to Fig. 7 (see page 9)
Press the pushbutton into the escutch-
eon, then mount the escutcheon.