GE GNSL05CBL (REV. 2) - Manual (Page 11)

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Flush Procedure
Whenever water of unknown quality is passed through the GE Water Filtration system, filter elements
should be discarded and the filtration system flushed.
Circumstances that may require flushing the system are:
■ Boil-water advisory.
■ Flooding of the GE Water Filtration system.
■ Long-term non-use.
The procedure for flushing the GE Water Filtration system is:
See Filter Cartridge Replacement section and follow steps 1, 2, 3 and 4.
Next, reinstall the sumps (without the filter elements), turn water on and flush water through the
faucet for one minute.
Then, turn water off, remove sumps, empty water out of sumps and install new filter elements.
Follow steps 5–11 in the Filter Cartridge Replacement section to complete. 4
3
2
1
Lightly lubricate the o-ring seal in the sump with clean food-grade silicone grease (silicone grease is
available through GE Parts and Services: 1-800-626-2002, Part Number: WS60X10005). Be sure it is fully
seated in its groove.
Hold the sump up to the filter head, aligning the center hole in the cartridge with the protrusion on
the bottom of the head. Failure to obtain proper alignment may cause damage to the filter and/or
filtration system, which will degrade filter performance.
Being careful not to cross-thread, rotate the sump onto the filter head and tighten securely by hand.
NOTE: If the sump will not tighten up to the head or if you feel resistance, you may have the cartridge
in upside down or misaligned. Take the cartridge out and check for correct orientation or alignment
and reassemble.
Repeat steps 2 through 8 for the Filter II cartridge in the Filter II sump, if necessary.
Turn on the filtered water faucet. Then, slowly open the water supply/saddle valve and allow the
filter housing to fill.
Close the filtered water faucet. Then, check for leaks between the sump and the head.
NOTE: If leaking, turn off the water supply and turn on the filtered water faucet. Disassemble the filter
housing and check the o-ring for cuts, flat spots, etc., and sealing surfaces for foreign material. Clean
the o-ring and lightly lubricate with clean silicone grease. Carefully press into the groove in the sump.
Reassemble and check for leaks.
If you are replacing the batteries, remove, properly discard and install two new AA alkaline batteries in
the battery pack. Removing the batteries or momentarily disconnecting the lead wires resets the
six-month electronic timer. It is recommended that you change your batteries at least once a year.
The filter cartridges contain activated carbon. When new, turn on the filtered water faucet for ten
minutes to flush the system.
If your system does not have an electronic monitor, place filter change label on sump, inside cabinet
door, or in another convenient location. Write in date of filter change for future reference. Filters
should be changed every six months. 14
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