
FV740 Rev. C 04/06/21
Page 7
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Problem Possible Cause Corrective Action
Faucet is non-responsive Baery voltage low or no power. Verify power is provided by ACA
Sensor and electronic 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 underneath the spout p. May require
cleaning with a damp cloth or 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 previous page (switches 7 and 8).
Direct sunlight into sink may make the unit inoperable. Do not
allow direct sunlight into sink.
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
Sensor may not have had enough
me to calibrate prior to a user
or target trying to iniate acva-
on.
Disconnect the sensor and electronic box cables and wait for 30
seconds. Reconnect the cables, but allow for another 30 seconds
before placing hands or a target within the sensor range. You
should hear a click of the solenoid once calibraon is complete.
Check if protecve lm was
removed from lens.
Water does not stop Electronics box cable connector
has bent pins that are shorted
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.
Check/clean sensor lens of any debris or buildup If sunlight or IR
interference is a factor, refer to page 7 “Sensor Sensivity” and
adjust faucet for Mode B operaon. Also, decreasing the sensiv-
ity seng (switch 7) may help.
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 washer located in the
solenoid box nut where it assem-
bles to the faucet shank.
Make sure the water supply stops are shut o. Check to ensure
the washer is installed or damaged. If not, install washer. If a
washer is damaged, replace with new.
Trouble Shooting: Faucet