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),
Green, Red and Red. Green light will stay on. 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
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.
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