Rev. 9/2021
Installation & Operation Manual
AquaFount
®
Washfountain
WAF-4400 Series
Willoughby Industries, Inc.
TOLL FREE
(800) 428-4065
● LOCAL
(317) 875-0830
● FAX
(317) 875-0837
Page 25
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�
