Carrier 38QB - Manual (Page 17)

3. Clean coil using vacuum cleaner and its crevice
tool (see Fig. 27). Work crevice tool vertically
making sure tool only touches dirt on fins. To
prevent fin removal, do not “scrub” fins with
tool or move tool horizontally.
4. If oil deposits are present, spray coil with house­
hold detergent (Fantastic, Lestoil, 409, or any
similar type). Wait 10 minutes then proceed to
step 5.
Using garden hose, spray coil vertically down­
ward with a constant stream of water at moderate
pressure (see Fig. 28). Keep nozzle at a 15 to 20
degree angle, about 3in. (76 mm) from coil face
and 18 in. (457 mm) from tube. Spray so debris is
washed out and away from coil.
Reinstall louvered casing being careful not to
damage coil.
Restore power to unit.
5.
6 .
7.
Fig. 27 — Crevice Cleaning Tool
Fig. 28 — Positioning Hose to Spray Coil
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