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Care and Maintenance
Evaporator Coil, Condenser Coil, and
Base Pan Maintenance
NOTE: See Figures I and 2 on page 4 for location ofair
conditionercomponents described below.
Outer Case Removal
To inspect and clean base pan, condenser coil, and
evaporator coil, air conditioner chassis must be
removed from outer case. For slide-out chassis models
(12000, and 18000 Btu units), remove frontgrille, air filter,
and frontframe. Slide chassis out of outer case. Refer to
Window Installationinstructions for detailed directions.
To remove outer case on 7000 and 9000 Btu models:
1. Remove unitfrom window.
2. Remove frontgrilleby sliding gdlle leftand pulling
- out. Remove air filter by sliding left and pullingout.
3,
Remove six5/16" screws secudng expandable
curtains to outer case. Three screws are located on
each side of outer case. Slide curtain frames away
from outer case until they disengage the top and
bottom rails.
4. Remove 4 screws securing front frame tochassis.
Pullfront frame away.
5. Remove six1/4" screws secudng outer case to air
conditioner base pan. Three screws are located on
each side of case.
6. Remove 1/4" screw securing power supplycord to
outer case.
7. Remove two 1/4" screws sscudng case to control
assembly. One screw is located on each side of
case.
8. Remove two 1/4" screws secudng back of case to
condenser assembly.
9. Lift outer case off chassis.
Inspecting and Cleaning Coils
Inspect evaporator and condenser coils. Check for bent
fins and accumulations of dirtor other debds that may
reduce or block air flow through coils. Reduced or
blocked air flow affects air conditioner efficiency and can
lead to premature compressor failure.
Attempt to straighten bent fins by "combing" fins with a
fine tooth comb. Vacuum (or blow) dirtand debris from
coils. Use brush to loosen difficultaccumulations of dirt.
NOTE: Especially dirty coils may require professional
cleaning. Contact a localSears Service Center
for professionalcleaning.
Inspecting and Cleaning Base Pan
Inspect base pan. Check fordirt, debds, algae build-up in
condensate drain channels, scratches, paint blisters, and
rust spots.
• Vacuum or blow dirt and debris from base pan. Use
brush to loosen difficult accumulations of dirt.
• Ifalgae build-up ispresent, clean with sponge or cloth
dampened withwarm soapywater.
NOTE: Placing algicide in outdoor side of base pan may
reduce or eliminate problem of algae build-up.
For best results,thoroughly clean base pan of
old algae before usingalgicide.
• Use wire brush to remove any rust and loose paint in
base pan. Pdme rust spots and bare metal with
quality metal pdmer before repainting areas with
quality enamel paint.
Outer Case Maintenance
Inspect outer case. Check for scratches, paint blisters,
and rust on both insideand outside of case.
NOTE: Remove chassis from outer case to inspect
case interior.
Repair scratches, rust, and paint blisters using quality
enamel paint. Before painting, remove loose paint and
rust with wire brush. Prime rust spots and bare metal
with quality metal primer before repainting.