Installation Guide

FV669 Rev. B 10/14/2019
Page 8
Problem Indicator Cause Corrective Action
Flush valve does not ush.
No water ushed. Stop valve is closed Open stop valve
No lights on sensor board Batteries not making contact
Remove and reinstall batteries correctly.
See step 4 on page 5 for reference.
Sensor ashes every 10
seconds
Low battery voltage indication
Sensor ashes every 30
seconds
Continuous user detection of object
within sensor range
Inspect and clean lens
Identify and remove any user from
sensor eld
Reduce sensor range distance (see
page 6 for Sensor Range Adjustment
instructions)
Sensor detects user but fails
to ush upon exiting sensor
range
Battery power level too low to activate
ush valve (Sensor rmware prevents
valve from opening when there is not
enough energy to fully close)
Replace batteries. See step 4 on page
5 for reference.
Dirty sensor lens Clean sensor lens with warm water and
mild soap until free of debris
Loose or damaged wire harness Inspect wire harness and connection
between electronics and motor
User not detected.
Sensor range may need to be adjusted Increase sensor range distance (see
page 8 for Sensor Range Adjustment
instructions)
Flush valve is aimed at an angle. Rotate ush valve head to be
perpendicular to wall. See page 6 for
adjusting the ush valve head.
Manual override button does
not initiate a ush.
Battery power level too low to activate
ush (computer prevents valve from
opening when there is not enough
energy to also fully close)
Replace batteries. See step 4 for
reference.
Trouble Shooting Guide
Dual Flush User Guide (For ZER6000AV-DF-TM Only)
• The Dual Flush model supplies ush volumes of 1.1 and 1.6 gallons per ush. When a user is present for less than 60
seconds, the valve will ush with 1.1 gallons of water. When a user is present for over 60 seconds, the valve consumes 1.6
gallons of water. If the manual override button is pressed, the valve will always ush 1.6 gallons of water. A user must be
present for a minimum of 8 seconds in order to trigger a ush.
• The Dual Flush model must be paired with a xture with a ush volume range that includes 1.1 to 1.6 gallons per ush. For a
list of recommended bowls, please refer to our website, www.zurn.com, or speak with your local Zurn rep.
• Do not use any abrasive or chemical cleaners to clean the ushometer.
• The suggested cleaning of chrome plated surfaces is simply to clean them with mild soap and water, then dry. Commercial
cleaning compounds are never recommended.
• Upon cleaning other areas of the restroom, be sure the sensor lenses are protected from other cleaning chemicals/solvents to
prevent potential damages to the sensor and/or electronics.
• Valves used in installations subject to shut down because of cold and freezing conditions should be maintained in the following
manner. After the main supply has been shut o󰀨 and the water drained from the system, remove the stop valve cap and stop
valve internals to allow the water to drain from the ush valve itself.
Care and Cleaning Instruction