Filter
Top Products
Table 1
System and General Troubleshooting
PROBLEM
POSSIBLE
CAUSE
REMEDY
Home does
not
heat evenly.
Improper
distribution
of heat.
This Is
unlikely
to
be a
furnace
problem.
Balance
duct
system
with
dampers.
Supply air
temperature too
Airtlow
blocked
or
dirty
air
filter.
Clean
or
replace
air
filter.
hot.
Insufficient
airflow.
Check
all
dampers.
Open
closed
dampers
including
registers
in
unused
rooms.
Check
system
temoerature
rise. If
temcerature
rise
Is
too
hiah
&Deed
UD
blower
fan.
Supply air
Excess
airtlow.
Check
sYStem
temoerature
rise.
Slow
down
blower
fan
is
necessary.
temperature too
cool.
Excessive
duct
losses.
Check
supply
air
ductwork.
5ea11eaky
joints
and
seams.
Insulate
ductwork
if
necessary.
Supply air
temperature too
Fan
control
"fan
on"
setting
too
low.
Increase
"fan
on"
time.
Register
air
deflectors
may
help.
cool during first
rnomentsof
furnace cycle.
Excessive
duct
losses.
Check
supply
air
ductwort<.
5ea11eaky
joints
and
seams.
Insulate
ductwork
if
necessary.
XIV. Maintenance &Annual Inspection
1) Replace Delevan nozzle with exact capacity, angle and pattern as supplied.
2) Replace vestibule mounted oil filter with AF-1 filter.
3) Replace condensate neutralizer with part number CCR-1.
4) Remove
air
handler assembly (slide out) and inspect the bottom (upflow configuration)
of
the
secondary heat exchanger. Loosen accumulated foreign matter with soft brush and vacuum
clean.
5) Perform all routine safety switch function checks.
6) Perform combustion analysis
as
described on page 18 Burner Adjustment.
7) Do not remove rear access panel
of
heat exchanger. Internal cleaning
of
the primary
or
secondary heat exchangers are not required (unless satisfactory combustion analysis
cannot be achieved).
! CAUTION
The ceramic combustion chamber located in the primary heat exchanger should not be handled
once it is cured
at
startup. Structural damage will occur,
if
handled and
if
broken the furnace will be
rendered inoperative.
NOTE:
If
the secondary heat exchanger turbulators have a light coating
of
soot, this is normal and will not
affect the efficiency
of
the furnace.
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