GE UFC 207, Owner'S Manual, Page: 15 / 23

15
A. O-RING REPLACEMENT
The O-ring may require a replacement if there is a leak
between the System Cap and the System.
Replacement Instructions:
1. Close the Inlet Valve.
2. Depressurize the System by performing a Manual
Flush sequence. Refer to the instructions in the
Controller Functions section under
D. OPERATIONS on how to perform a Manual
Flush sequence.
For Horizontally-mounted Systems , connect a ¼”
tubing to the Inlet Mini Ball Valve, direct the other
end of the ¼” tubing to a drain or a pail, and open
the Inlet Mini Ball Valve to drain the water in the
Internal Prefilter cavity.
3. Using the Cap Wrench, remove the System Cap.
4. Carefully remove the O-ring from the System.
5. Clean the O-ring with a clean, soft cloth. Check
for nicks, pits, proper formation and cleanliness.
6. If nothing appears unusual, apply a very small
amount of DOW CORNING 111 silicone lubricant
to the O-ring and reinstall the O-ring. If the O-ring
appears damaged, replace the O-ring with a new
O-ring.
7. Replace System Cap tightly using the Cap
Wrench.
8. Open the Inlet Valve slowly.
B. INTERNAL PREFILTER REPLACEMENT (CARBON OR
STAINLESS STEEL)
The Carbon Prefilter may require replacement more
frequently than once a year during the Annual
Maintenance or if there is a chlorine taste in the water
after the System has been in use for a period of time.
The Carbon Prefilter may also remove some other tastes
and/or odours. In some cases, the Carbon Prefilter may
become fouled earlier than one year depending on the
intake water source.
The Stainless Steel Prefilter generally does not need to
be replaced. It may become dirty and may be cleaned
under a tap. Replace the Stainless Steel Prefilter if
damaged.
Replacement Instructions:
1. Close the Inlet Valve.
2. Depressurize the System by performing a Manual
Flush sequence. Refer to the instructions in
the
Controller Functions section under
D. OPERATIONS on how to perform a Manual
Flush sequence.
For Horizontally-mounted Systems , connect a ¼”
tubing to the Inlet Mini Ball Valve, direct the other
end of the ¼” tubing to a drain or a pail, and open
the Inlet Mini Ball Valve to drain the water in the
Internal Prefilter cavity.
C. EXTERNAL PREFILTER REPLACEMENT
Depending on the water quality, the External Prefilter may
need to be washed or replaced prior to the Annual
Maintenance. A decrease in water pressure at the taps
may indicate that the External Prefilter may need to be
replaced.
Note: For rinsing of the used External Prefilter cartridge,
save a bucket of filtered water from a tap in the dwelling
before servicing the External Prefilter. Water supply in
the dwelling will be interrupted temporarily during
servicing.
Replacement Instructions:
1. Close the Inlet Valve to the External Prefilter.
2. Attach a ¼” tubing to the Mini Ball Valve at the
bottom of the External Prefilter. Direct the other
end of the ¼” tubing to either a drain or a pail.
3. Open the Mini Ball Valve slowly.
4. Press and hold down the red button on the
External Prefilter Head.
5. Once the External Prefilter is drained, close the
Mini Ball Valve.
6. Loosen the External Prefilter Housing from the
External Prefilter Head.
7. Wear a pair of disposable gloves and carefully
remove the External Prefilter cartridge from the
External Prefilter Housing.
8. Rinse off the used External Prefilter cartridge. If
the used External Prefilter cartridge is no longer
reusable, replace it with a new one. If a new
External Prefilter cartridge is to be installed,
remove the plastic wrap on the outside of the
cartridge.
9. Ensure that the O-ring is in good condition and
seated at the lip of the External Prefilter Housing.
If necessary, replace the O-ring with a new one.
10. Screw the External Prefilter Housing into the
External Prefilter Head and tighten the connection
using the Housing Wrench.
11. Open the Inlet Valve slowly and depress the red
button on the External Prefilter Head to allow air to
escape from the External Prefilter Housing.
12. Once water emerges from the button, release the
button.
13. Dispose of the disposable gloves.
Check that the Thimble Filter is in place, seated in
the spigot. DO NOT attempt to remove the
Thimble Filter. If the Thimble Filter is loose, gently
push it into place.
5. R emove the new Internal Prefilter from the
packaging.
6. Insert the new Internal Prefilter into the Prefilter
cavity and push it down gently to ensure it is
seated properly.
7. Replace the System Cap tightly.
8. Open the Inlet Valve slowly.
9. Dispose of the disposable gloves.
H. REPLACEMENT PART LIST AND
PROCEDURES
Replacement Procedures
3. Using the Cap Wrench, remove the System Cap.
4. Put on a pair of disposable gloves and carefully
remove and dispose of the Internal Prefilter.