48
Problem
Possible Causes
Solutions
Water is leaking between the
Wing head screw is not
Hand tighten wing head screw on unit
manifold and the cartridge
tight enough.
manifold.
pack.
New cartridge pack: o-ring
Turn off power to system. Disconnect
missing from post (each of the
quick connect fitting in tube from
4 posts must contain an o-ring.)
reservoir. Disconnect the manifold and
verify/replace missing o-ring. Reinstall
cartridge pack as indicated in
“Cartridge Pack Replacement.”
Leaks at membrane, drain
Burrs on tubing.
Remove tubing as shown in “Tubing
connections, tank connections,
Removal.” Check tubing for burrs.
or remote connections.
Tubing not installed in fitting
Mark tubing and install per “Tubing
completely.
Installation.”
Reduced or no product flow
Plugged 0.2 micron final filter.
Replace final filter (Part no. D3750)
from the dispense arm or
as indicated in “0.2 Micron Filter
remote dispenser (if attached).
Replacement” section.
(Low DI dispense flow.)
Reservoir not connected.
Reconnect reservoir. Ensure quick
connect fitting in tube from reservoir
is fully engaged.
Reservoir improperly located
Verify reservoir outlet is located at or
too low.
above system inlet.
DI pump not functioning.
Replace pump (Part no. PU1190X1)
Pinched tubing.
Check tubing inside system and
between reservoir and system.
Air purge not complete.
Allow up to 24 hours of recirculation
for purging all air from the fluid path.
T
ROUBLESHOOTING
