1. PROBLEM: Valve does not function (red light does not
flash when user steps in front of sensor).
CAUSE: No power is being supplied to sensor.
SOLUTION: Ensure that the main power is turned “ON”. Check
transformer, leads and connections. Repair or
replace as necessary.
CAUSE: EL-1500/EL-1500-L Sensor is not operating.
SOLUTION: Replace EL-1500/EL-1500-L Sensor.
2. PROBLEM: Valve does not function (red light flashes
when user steps in front of Sensor).
INDICATOR: The red light stops flashing when user steps away and the valve
makes a “clicking” sound but does NOT flush.
CAUSE: No water is being supplied to the valve.
SOLUTION: Make cer tain that water supply is turned “ON” and the
Control Stop is open.
CAUSE: EL-128-A cartridge is fouled or jammed.
SOLUTION: Turn electronic power to valve “OFF” (failure to do so
could result in damage to the solenoid coil). Remove
the solenoid operator from the valve and remove the
EL-128-A cartridge. Clean and/or repair as necessary.
INDICATOR: The red light stops flashing when user steps away but the valve
does NOT make a “clicking” sound and does NOT flush.
CAUSE: EL-163-A solenoid shaft assembly is fouled or jammed.
SOLUTION: Turn electronic power to valve “OFF” (failure to do so
could result in damage to the solenoid coil). Remove
EL-101 or EL-166 nut from the solenoid operator.
Remove the coil from the solenoid operator. Use a
spanner wrench or pliers to remove the EL-163-A
solenoid shaft assembly from valve. Clean and/or
replace as necessary. Be sure to replace plunger
spring when reassembling Solenoid Shaft Assembly.
INDICATOR: The red light flashes three (3) short flashes, three (3) long
flashes then three (3) short flashes (“S-O-S”) and continues to
repeat this cycle even when user steps out of the sensor’s
detection range.
CAUSE: EL-1500/EL-1500-L Sensor wiring connections are
incorrect.
SOLUTION: Rewire Sensor to valve. One solenoid lead connects to the
“TO VALVE” connection on Sensor. One transformer lead
connects to the “24 VAC IN” connection on Sensor.
Second solenoid lead and second transformer lead
connect together.
CAUSE: Wiring to Sensor is ground shorted.
SOLUTION: Find short in wiring circuit and correct.
CAUSE: EL-162-2 solenoid coil is burnt out or coil is not
connected to solenoid plunger shaft.
SOLUTION: Reinstall or replace coil as necessary.
3. PROBLEM: Volume of water is insufficient to adequately siphon fixture.
CAUSE: Control Stop is not open wide enough.
SOLUTION: Adjust control stop for desired water delivery.
CAUSE: Low Consumption unit is installed on Water Saver or
Conventional fixture.
SOLUTION: Replace Diaphragm component parts of valve with kit
that corresponds to appropriate flush volume of fixture.
CAUSE: Inadequate water volume or pressure available from supply.
SOLUTION: Increase pressure or supply (flow rate) to the valve.
Consult factory for assistance.
4. PROBLEM: Length of flush is too long (long flushing) or valve
fails to shut off.
CAUSE: Water Saver valve is installed on Low Consumption fixture.
SOLUTION: Replace Diaphragm component par ts of valve with
kit that corresponds to appropriate flush volume of fixture.
CAUSE: Relief valve in diaphragm is not seated properly or
bypass hole in diaphragm is clogged.
SOLUTION: Disassemble inside Diaphragm component par ts and
wash parts thoroughly. Replace worn parts if necessary.
5. PROBLEM: Water splashes from fixture.
CAUSE: Supply flow rate is more than necessary.
SOLUTION: Adjust Control Stop to meet flow rate required for proper
cleansing of the fixture.
CAUSE: Closet valve is installed on urinal fixture.
SOLUTION: Replace closet Diaphragm component par ts with proper
urinal kit (Inside Diaphragm Assembly or Inside Parts Kit)
Troubleshooting Guide
NOTE: Upon detection of the user, the red indicator light flashes slowly for a period of eight seconds. When the user leaves the detection range, the indicator light flashes rapidly and the
Sensor initiates the flush sequence. Then the indicator light stops flashing and the valve flushes. (On water closet models, the valve will flush after a three-second delay).
Maintenance Guide
•SENSOR OPERATED VALVES
Care and Cleaning Instructions
DO NOT USE abrasive or chemical cleaners to clean
Flushometers that may dull the luster and attack the chrome
or special decorative finishes. Use ONLY soap and water, then
wipe dry with a clean towel or cloth.
When cleaning the bathroom tile, protect the Flushometer
from any splattering of cleaner. Acids and cleaning fluids
can discolor or remove chrome plating.
If further assistance is required, please contact the
Sloan Valve Company Installation Engineering Department at
1-888-SLOAN-14.
SLOAN VALVE COMPANY • 10500 SEYMOUR AVENUE • FRANKLIN PARK, IL 60131
Phone: 1-800-9-VALVE-9 or 1-847-671-4300 • Fax: 1-800-447-8329 or 1-847-671-4380 • http://www.sloanvalve.com
Copyright © 2003 Sloan Valve Company Printed in the U.S.A. Made in the U.S.A. OPTIMA ESS M.G. — Rev. 0a (05/03) Code No. 0816510
The information contained in this document is subject to change without notice.