
FV808 Rev. A 09/07/21
Page 18
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Problem Possible Cause Corrective Action
Faucet is non-responsive Baery voltage low. Change out baeries
Electronic box connector cable
has bent or broken pins.
Check to see if pins are missing, bent, or broken. If yes, then the
electronic box needs to be replaced
Sensor lens could have surface
damage, scratches, or deposit
build ups.
Inspect the sensor lens. May require cleaning with a damp cloth
or spout/sensor replacement
Sensor lens could be obstructed
by environmental factors such
as highly reecve surfaces or
bright lighng condions.
If this is the case, then adjust the dip switch sengs for sensor
sensivity per the diagram on page 16 (switches 7 and 8). Direct
sunlight could eect unit operaon. Do not allow direct sunlight
onto unit.
If one mode does not help try one of the following:
-switching 7 to O to set the sensor to the lowest sensivity level
(detecon range may be less for all hand types).
-switching to alternate mode using switch 8; mode A or B depend-
ing on current conguraon
Reset sensor aer dip switch changes.
Faucet does not acvate
aer inial installaon
Check if protecve lm was
removed from lens.
Check if protecve lm was removed from lens. If it was not, then
remove it.
Water does not stop Electronic box connector cable
has bent or broken pins.
Check to see if pins are missing, bent, or broken. If yes, then the
electronic box needs to be replaced
Ghost Acvaon Sensor lens could be obstructed
or environmental factors such as
highly reecve surfaces and/or
bright sunlight condions could
be present.
Check/clean sensor lens of any debris or buildup and remove any
obstrucons. If sunlight or IR interference is a factor, refer to page
16 “Sensor Sensivity” and adjust faucet for Mode B operaon.
Also, decreasing the sensivity seng (switch 7) may help. If
possible/needed, adjust lighng condions and/or remove nearby
reecve surfaces.
Reset sensor aer dip switch changes.
Sensor faucet is leaking
underneath the sink or
counter
Mounng hardware is not ght-
ened suciently (faucet shank,
electronic box, supply hoses, etc).
Check and ensure the nuts and joints are ght and secure from
the supply stop all the way to the faucet shank
Missing the gasket located in the
valve box nut where it assembles
to the faucet shank.
Make sure the water supply stops are shut o. Check to ensure
the gasket is installed and not damaged. If not installed, install
gasket. If gasket is damaged, replace with new
Trouble Shooting: Faucet (Solenoid Valve)