Frigidaire LGUB2642LF2 Service Manual page 161

Ice Maker Jumper Tube Replacement
Flex Tray Ice Maker Models
Always use the TORCH GUARD heat shield part
number 5304418872, behind evaporator before
attempting to solder. The excessive heat from
soldering will warp the plastic liner.
This unit has one heat exchanger (Suction Line & Cap
Tube Assembly) enclosed in the insulation between
the liner and the cabinet back. It has a Jumper tube
running from the out let of the ice maker compartment
evaporator to the inlet of main evaporator in the freezer
compartment. Because of this, the original part can
not be removed. There is a service kit to bypass the
internal jumper tube. It will be necessary to run a new
jumper tube down the back of the product and bypass
the internal jumper tube if the jumper tuber has a leak or
is restricted.
Jumper tube Kit Contains:
1- Jumper Tube 6- Screws
1- Filter-Drier 1- Cover
1- Armor Flex 1- Package Permagum
2- Tape 1- Instruction Sheet
1. Heat Shield
To replace the ice maker Jumper tube:
1. Disconnect refrigerator from electrical supply.
2. Remove all freezer section shelves.
3. Remove evaporator cover.
4. Disconnect wiring harness at liner plug.
5. Follow tho instructions on pages 6-26 and 6-27 to
gain excess to the ice maker evaporator.
6. Cut the ice maker discharge line in front of the weld
and cut the line off even with the food liner.
7. Using a 1/4" drill bit, drill hole through cabinet from
inside just above the original heat exchanger.
8. Using a 1/2" drill bit, open hole drilled in Step 7 to
1/2" from back of product.
9. Place a heat shield between the food liner and the
ice maker evaporator.
10. Remove stubs of old Jumper tube from
evaporator and install new heat exchanger into
evaporator.
11. Push jumper tube through hole in cabinet.
and connect jumper tube to ice maker evaporator.
12. Slide Armor-Flex over jumper tube until cover is
against hole at back of cabinet.
13. Seal the hole on the inside and outside using
permagum.
14. Remove freezer door, baskets and evaporator
cover.
15. Disconnect jumper tube in front of the inlet line weld
of the freezer evaporator.
16. Cut off jumper tube at freezer liner.
17. Drill a 1/2 inch hole through cabinet next to old
jumper tube.
18. With the heat shield in place remove stub from the
inlet line of the freezer evaporator
19. Insert new jumper tube through liner, connect to
inlet of the freezer evaporator and weld in place.
20. Seal bottom holes with permagum.
21. The one piece cover can now be installed over heat
exchanger. Place open end of cover with top of
compressor compartment opening. Attach cover to
back of cabinet using screws provided. There is no
need to predrill holes as the screws are self cutting.
22. Replace filter-drier using caution to connect cap
tubes properly as described in the filter-drier
replacement section.
DO NOT unbraze old filter-drier from system. This
will vaporize and drive moisture from desiccant
back into system. The old filter-drier should be cut
out of system.
23. Evacuate and recharge system.
24. Bend remaining tubing to fit into machine
compartment opening, being careful not to set up
any excess noise from line vibration.
25. Run product to make sure refrigerant is circulating.
26. Reinstall evaporator and machine compartment
cover.
7-17
Sealed System