Cleaning And Maintenance - Carrier 38BNE018-036 Owner's Manual

CLEANING AND MAINTENANCE
To avoid the possibility of electric shock, always turn off
power to the system betbre performing any cleaning or
maintenance to the system. Turn offthe outdoor disconnect
switch located near outdoor unit. Be sure to disconnect
indoor unit if on a separate switch.
Operating the system with dirty air filters may damage the
indoor unit and could cause reduced cooling performance.
Intermittent system operation, fiost build-up on indoor coil
and blown fiJses may also result fiom system operation
with dirty air filters.
Air Filters
-- Relnove and clean the air filters when the
Filter indicator light on the unit display panel is lit. See Fig. 13
and 14.
NOTE: If air filters show sills of excessive wear or are tom,
they must be replaced. Contact your local dealer for replace-
ment filters.
1. Open front panel on unit.
2. Pull filters down to relnove. (See Fig. 14.)
3. Vacuum filters.
4. Clean with warm water.
5. Shake filter to remove excess water and dry thorou_lly.
6. Replace filter by sliding filter behind fiont m-ilteuntil fit-
ter snaps in place.
7. Slide Operation Switch on unit to OFF position to reset
Filter stares indicator light on 40BN036 units, or press the
ON/OFF button for 5 seconds on 40BN018,024 and 036
units.
8. Slide Operation Switch on unit to REMOTE 3osition to
resume relnote control operation.
Indoor Unit (40BN) Front Panel-- To clean the
brontpanel on the indoor unit, wipe the outside with a soft, dry
cloth. If necessary, a mild liquid detergent can be applied and
wiped offwith a dry cloth.
When cleaning the fiont panel, do not use water hotter than
105 F and do not pour water onto the tan coil.
Do not use abrasive or petroleum based cleaners as they
may damage the fiont panel.
Indoor Unit (40BN) Coil -- To clean the indoor unit
coil, remove the fiont panel and vacuum the coil fins. Avoid
bending or damaging the fins.
Outdoor Unit (38BN018-036) Coil -- To clean the
outdoor unit coil follow the steps below:
Sharp fins and other metal parts on the outdoor unit coil
can cause personal injury during cleaning.
1. Remove aW dirt, debris or obstruction from discharge
opening.
2. Use a garden hose to spray water on coil. Be sure to spray
between coil fins to relnove any debris that may inhibit
heat transfer.
Condensate Drains-
Clean all condensate drains at
the start of each cooling season. Check the flow by pouring wa-
ter into the drain.
40BN018,024,030
40BN036
Fig. 14 -- Removing Air Filters