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24
Cleaning Evaporator Coil
1. The coil should be cleaned when it is dry. If the coil is coated with dirt or lint, vacuum
it with a soft brush attachment. Be careful not to bend the coil fins.
2. If the coil is coated with oil or grease, clean it with a mild detergent-and-water solu-
tion. Rinse the coil thoroughly with water. ImPORTANT: Do not use excessive water
pressure. Excessive water pressure can bend the fins and tubing of the coil and lead
to inadequate unit performance. Be careful not to splash water excessively into unit.
3. Inspect the drain pan and condensate drain at the same time the evaporator coil is
checked. Clean the drain pan by flushing with water and removing any matters of
obstructions which may be present.
4. Go to next section for cleaning the condenser coil.
Cleaning Condenser Coil, Condenser Fan, Circulation Air Blower and venturi
1. Remove the compressor access panel. Disconnect the wires to the condenser fan
motor in the control box (see wiring diagram). Remove the wires from the opening in
the bottom of the control box.
2. Remove the screws securing the condenser top panel and remove the panel with
condenser fan motor and grille attached.
3. The coil should be cleaned when it is dry. If the coil is coated with dirt or lint, vacuum
it with a soft brush attachment. Be careful not to bend the coil fins.
4. If the coil is coated with oil or grease, clean it with a mild detergent-and-water solu-
tion. Rinse the coil thoroughly with water. ImPORTANT: Do not use excessive water
pressure. Excessive water pressure can bend the fins and tubing of the coil and lead
to inadequate unit performance. Be careful not to splash water excessively into unit.
5. The venturi should also be inspected for items of obstruction such as collections of
grass, dirt or spider webs. Remove any that are present.
6. Inspect the circulating air blower wheel and motor for accumulation of lint, dirt or
other obstruction and clean it necessary. Inspect the blower motor mounts and the
blower housing for loose mounts or other damage. Repair or replace if necessary.
Re-assembly
1. Place the condenser top panel back on the unit and replace all screws.
2. Run the fan motor wires through the hole in the bottom of the control box. Reconnect
fan motor wires per the wiring diagram attached to the back of the cover.
3. Replace the filter and blower/evaporator coil access panels.
4. Replace the control box cover and controls access panel.
5. Restore electrical power to the unit and check for proper operation, especially the
condenser fan motor.
REPLACEMENT PARTS
Contact your local distributor for a complete parts list.
TROUBLESHOOTING
Refer to Troubleshooting Chart included in this manual.
WIRING DIAGRAMS
Refer to the appropriate wiring diagram included in this manual.
CHARGING
Refer to the appropriate charge chart included in this manual.
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Table of Contents
Troubleshooting
