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Kenmore Condensing gas furnaces User's Information Manual page 23

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Furnace
Maintenance
FIG.
7
TYPICAL
INSTALLATION
(Cont.)
The floor
or furnace
base must
be in good
physical
condition.
For Upflovv
Furnace
with
a bottom
return
the floor or base area around the furnace
must form
a seat (no sagging,
cracks defects
etc.) to prevent
air-
from being pulled
in from furnace
area, or any defect
area
must
be sealed
between
floor
or base
and
furnace.
Remove the front panel and use a flashlight
to inspect
the visible part of the heat exchanger,
burners
and ig-
nitor.
Check for loose soot and give particular
atten-
tion to obvious
deterioration
from corrosion
or other
sources.
Check for any signs of condensate
leakage
inside furnace
cabinet.
tf soot or deterioration
is found
or if there
is evidence
of
condensate
leakage
inside
furnace
DO
NOT
OPERATE
FURNACE.
Calt a qualified
service
technician.
/ AIN
BURNER
8L PILOT
FLAMESI! onthly
Allow
furnace
to run approximately
1 0 minutes
then
inspect
the main burner
flames
and pilot flame
(ex-
cept furnaces
with
Hot Surface
Ignition).
MAIN
BURNER FLAMES
should
be stable,
soft and
blue, (dust may cause
orange tips or they
may have
,wisps of yellow
but they must not have solid yellow
tip_). They should extend
directly
upward
from burner
without
curling,
floating
or lifting
off. They must not
touch
the sides of the heat exchanger.
Con'tact
a qualified
service
agency
at once
if an ab-
normal
flame
appearance
should
develop.
FIG.
8 MAIN
BURNER
FLAME
PILOT FLAME
should
surround
3/8"'
to 1/2"
of the
ignitor/sensor
tip.
FIG.
9
PILOT
FLAME
]]

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