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MAINTENANCE
– Should the volume of water decrease over time,
first inspect and clean the showerhead(s). If the
problem persists, inspect the cartridge.
– At least once per year, inspect the cartridge,
including the check valves on the rear of the
cartridge. Replace the cartridge if dirty or worn,
or if leaking when in the off position.
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.
TROUBLESHOOTING
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 escutcheon or handle
Output temperature goes from hot
to cold as handle is turned (should
go from cold to hot)
Handle hard to turn or makes noise
when being turned
Shower or spout drips for a short
period of time after the valve is
closed
Shower or spout drips constantly
after the valve is closed
28
– If you have questions, please contact Hansgrohe
POSSIBLE CAUSE
— Supply pressure inadequate
— Showerhead dirty
— Cartridge check valves dirty
— Cartridge check valves dirty or
worn
— Rotational limit stop not set
correctly
— Hot and cold supplies are
reversed
— Hot and cold supplies are
reversed
— Cartridge dirty or worn
— Normal clearing of the tub spout
and/or showerhead
— Cartridge dirty or worn
WHEN REASSEMBLING AFTER
MAINTENANCE, SET THE ROTATIONAL
LIMIT STOP BEFORE REINSTALLING
THE HANDLE (SEE PAGE 21).
IF THE SHOWER WILL NOT BE USED FOR AN
EXTENDED PERIOD 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.
Customer Service at 800 334 0455.
RECOMMENDED ACTION
— Check water pressure
— Clean the showerhead
according to the manufacturer's
instructions
— Replace the cartridge
— Replace the cartridge
— Set the rotational limit stop
(pg. 21)
— Reverse the cartridge (pg.18)
— Reverse the cartridge (pg. 18)
— Replace the cartridge
— This is a normal condition that
does not indicate a problem with
the valve.
— Replace the cartridge
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