User Guide
Battery-Powered & AC-Powered Flush Valves
Normal
Operation: When new batteries are inserted or AC
power
is connected or RESET Button is pushed, the lights on
the Printed Circuit Board (PCB) will blink in the following
sequence:
Red, Red (with solenoid clicking), Red. When the
user enters the sensor beam's effective range, the Red
light
will flash one time on battery-operated flush valves
and
will stay on
on AC-powered models. If the user
stays in the
effective range for more than 4 seconds and
steps away,
the valve will activate (1) flush cycle.
The flush valve unit will automatically reset for the next
user. When the manual OVERRIDE Button is pushed, the
flushing mechanism will be activated without impacting
the mode of automatic operation. On battery powered
models, the Red indicator light flashes when batteries
are low.
Please note: Always push the RESET Button
BEFORE diagnosing any problem and AFTER
taking a corrective action.
Worn batteries are the leading cause of malfunctions.
Troubleshooting Adjusting Settings
PROBLEM - FLUSH VALVE WILL NOT FLUSH
PROBLEM - FLUSH VALVE WILL NOT SHUT OFF
SENSOR OPERATED FLUSH VALVES
Note: Pint and Dual Flush models
contain non-adjustable PC boards.
POSSIBLE CAUSE TO DIAGNOSE REMEDY
1234 5678
1 Second Flush - 0.5 GPF
3 Second Sensor Arming Time
ON
OFF
Water does not turn on
Check water supply. Turn water on at valve.
Power supply failure
Check polarity of batteries (or Power
Adapter voltage) and connections.
Replace batteries (or Power Adapter).
Push RESET Button.
Batteries are weak Red indicator light flashes, no click. Replace batteries. Push RESET Button.
Sensor distance is too short
Stand in front of valve to find focal
point of sensor beam.
To adjust sensor distance out, turn adjustment
screw clockwise. Push RESET Button.
PC Board does not respond
No light, no action.
Replace batteries (or Power Adapter).
Replace PCB. Push RESET Button.
Sensor eye does not respond Red indicator light does not blink.
Replace batteries (or Power Adapter). Replace
sensor eye and cable. Push RESET Button.
Sensor eye angle adjustment Beam not detecting user.
Disassemble control unit, rotate lens
up/down with finger. Push RESET Button.
User time in the sensor range is
too short
Stand in front of flush valve. The red
indicator light only flashes once.
Stand in sensor range for more than 4 sec-
onds, then move away. Push RESET Button.
Solenoid valve is clogged
Solenoid is clicking, but water does
not flow.
Clean solenoid and blow free all by-pass
holes. Replace solenoid. Push RESET Button.
Solenoid coil malfunction Light blinks but no solenoid clicking. Replace batteries (or Power Adapter).
Replace solenoid coil. Push RESET Button.
Solenoid is dirty
Solenoid valve is normally closed.
Clicking sound means the solenoid is dirty.
Replace solenoid valve. Push RESET Button.
Dip Switch Settings - Push reset button on PC board after any dip switch adjustments
Diagram
#
Flushing Volume (Time) Water Closet or Urinal
Sensor Arming Time
(Sensing Time Required For Flush)
1
Urinal Factory pre-set
Moen Model Flush Time GPF SW 1 SW 2 SW 3 SW 4 SW 5 SW 6 SW 7 SW 8 Arming Time
8315* 1 SEC 3 SEC0.5 ON ON ON ON OFF OFF OFF ON
* Models 8315 and 8316 contain non-adjustable PC boards.
Solenoid pin
connection
Sensor eye cable
pin connector
Sensor distance
adjustment
AC power adapter
pin connector (Red)
Battery holder pin
connector (Red)
Battery holder pin
connector (Red)
Red
light
Dip switch
Reset
button