Rev. 1/2019
Installation & Operation Manual
Aquafount
®
360° Washfountain
WAF-5406-PSL-FT / WAF-5408-PSL-FT
Willoughby Industries, Inc.
TOLL FREE
(800) 428-4065
● LOCAL
(317) 875-0830
● FAX
(317) 875-0837
Page 20
www.willoughby-ind.com
Troubleshooting -
Self-closing Pneumatic Valves
VALVE WILL NOT OPEN OR DELIVER WATER:
(1) Check the plastic tubing that runs from the push button actuator to the pneumatic valve for air leaks.
(2) Make sure the checkstop on the supply to the valve is fully open. Do not partially close the checkstop for any reason
as it is not a throttling valve. The checkstop should be fully open (normal operation) or fully closed (when servicing
the valve)�
(3) Close checkstop and then inspect the strainer in the supply line (installed after the checkstop) to make sure the
strainer is not blocked or partially blocked prohibiting water flow.
(4) Separate valve motor from valve base by removing the (4) #8 screws. Remove the top cover from the motor. Check
the actuator diaphragm for holes�
Do not lose the actuator spring
�
VALVE WILL NOT SHUT OFF:
(1) Separate valve motor from valve base by removing the four (4) #8 screws�
(2) Inspect the water diaphragm assembly to see if bypass hole in diaphragm is blocked. Remove any debris by blowing
on diaphragm or using force of air� Do not use any tool (such as straight pin) to remove any debris� Enlarging the hole
will shorten or make for erratic cycling.
VALVE CONTINUES TO TRICKLE OR PARTIALLY DELIVER WATER AFTER CYCLE IS OVER:
(1) Inspect seating area on valve base to make sure no debris, pitting or scoring is present.
(2) Clean seat or replace seat (if a brass base) as necessary�
(3) Inspect seating area of diaphragm for debris, clean as necessary� If debris has caused permanent indentations in the
rubber, it may have to be replaced�
