Filtering Out Trouble; Performing Routine Maintenance - Payne 480BAV Upflow User's Information Manual

6. Replace the control access door.
(See Fig. 16 or 17.)
7. If the furnace is being shut down
because of a malfunction, call
your dealer as soon as possible.
PERFORMING
ROUTINE
MAINTENANCE
With the proper maintenance and care,
your furnace will operate economically
and dependably. Basic maintenance,
which can easily be accomplished by
following the directions, is found on
this and the following pages. However,
before beginning maintenance, follow
these safety precautions:
WARNING
!
Turn off electrical power sup-
ply to your furnace before re-
moving the access doors to
service or perform mainte-
nance. A failure to follow this
warning could result in per-
sonal injury or death.
21
CAUTION
!
Although special care has
been taken to minimize sharp
edges, be extremely careful
when handling parts or reach-
ing into the furnace.
FILTERING OUT
TROUBLE
A dirty filter will cause excessive stress
on the furnace blower motor and can
cause it to overheat and automatically
shut down. The furnace filter should be
checked every 3 or 4 weeks and cleaned
22
if necessary.
If your furnace filter needs replacing,
be sure to use the same size and type of
filter that was originally supplied. Use
the Furnace Filter Table and compare
your furnace size with the proper filter
size.
CAUTION
!
Never operate your furnace
without a filter in place. Doing
so may damage the furnace
23
blower motor. An accumula-
tion of dust and lint on internal
parts of your furnace can
cause a loss of efficiency.
The air filter for upflow furnaces is
normally located in the blower com-
partment. Filters for the downflow fur-
naces are normally located in the
return-air plenum above the blower. If
the filters have been installed in another
location, contact your dealer for in-
structions. To inspect, clean, and/or re-
place the air filter(s), follow these
steps:
• UPFLOW FURNACES ONLY:
1. Turn OFF the electrical supply to
the furnace. (See Fig. 21.)
2. Remove control and blower access
doors.
6
3. Push filter retainer toward the
bracket opening to release the fil-
ter. (See Fig. 24.)
4. Gently remove the filter and care-
fully turn the dirty side up (if dirty)
to avoid "spilling" dirt from the fil-
ter. (See Fig. 25.)
5. Inspect the filter. If torn, replace
the filter.
6 Wash the filter (if dirty) in a sink,
bathtub, or outside with a garden
hose. Always use cold tap water. A
mild liquid detergent may be used
if necessary. Spray water through
the filter in the opposite direction
of airflow. Allow filter to dry.
7. Reinstall the clean filter.
8. Put filter retainer back in the
bracket opening and lock it in
place.
9. Replace the blower and control
access doors and turn ON electri-
cal power to your furnace. (See
Fig. 16, 17, and 26.)
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25
26