Rev. 11/2016
Installation & Operation Manual
Stainless Steel 180° Washfountain
WWF-3603 Series
Willoughby Industries, Inc.
TOLL FREE
(800) 428-4065
● LOCAL
(317) 875-0830
● FAX
(317) 875-0837
Page 20
www.willoughby-ind.com
Troubleshooting - Infrared Sensors
I. Faucet does not function (red light does not appear when user steps in front of sensor)
A. No power to sensor. Make certain that power is on. Check transformer leads and connections.
Repair or replace as necessary.
B. Willoughby 700150 IR Sensor not operating. Replace Willoughby 700150 IR Sensor.
II. Faucet does not function (red light appears when user steps in front of sensor and solenoid
does not click)
A. Debris in solenoid; disassemble, clean, and flush.
B. Solenoid not wired correctly; check solenoid connections.
C. Solenoid problem; replace solenoid.
III. No water when activated (valve clicks)
A. Make certain that water is turned on.
B. Valve clogged. Clean or replace filter.
IV. Very low flow or slow dribble
A. Check supply stop(s); open if closed.
B. Debris in filter; remove, clean, and reinstall.
C. Debris in aerator or spray head; remove, clean and reinstall.
D. Disassemble solenoid; clean and flush.
V. Continues to run (with power on and red light flashing)
A. Non-permanent target in range after user leaves. Remove non-permanent target. If this
target is a new permanent target (i.e., a new wall or partition), turn off 24 volt power for
fifteen (15) seconds. Turn power back on and let the sensor complete start-up mode.
B. Sensor failure; replace sensor.
VI. Continues to run (even with power disconnected)
A. Solenoid valve installed backwards.
B. Debris in solenoid, won’t close properly; remove operator and clean. Reassemble in the
same manner.
