Labconco WaterPr BT Systems 90151 Series - Manual (Page 51)

Troubleshooting
43
How to Clean the Screen Filter
The purpose of the Screen Filter is to prevent large particles or other debris from entering the system. If the
Screen Filter becomes blocked with debris, then the Feedwater will not flow freely to the system. It is
recommended to clean the Screen Filter twice a year or whenever it may have become clogged.
A • Close the Feedwater Supply Valve.
Open the front cover (this may require removal of the final filter) to let
the system go into STANDBY mode.
• Locate the Screen Filter. This will be located where the Feedwater
8 mm OD Tubing originates.
• Unscrew the collar that holds the Feedwater Tubing to the barbed
end of the fittings (A). Pull the tubing off of the fitting.
• Unscrew the Screen Filter from the Feedwater pipe.
B • Go to a sink and flush tap water backwards through the Screen
Filter. The water should flow through the barbed end first. Any trapped
debris on the Screen Filter will be flushed out.
• Apply 3-4 turns of new white tape to the threads of the Feedwater
Pipe in a clockwise direction.
• Screw the Screen Filter back onto the Feedwater Supply Pipe.
C • Attach the Feedwater Tubing back onto the Barbed Fitting.
• Open the Feedwater Supply Valve.
• Close the front cover.
• Leave the system in PRE OPERATE mode.