46
APPLIANCE PRODUCES SOOT
Investigate
Diagnose
Correct
Appliance
produces
soot
Combustion is
unbalanced
CAUTION: ALWAYS FOLLOW THE MANUFACTURER’S LIGHTING INSTRUCTIONS FOR THIS
APPLIANCE FOUND ON PAGE 35. FAILURE TO ADHERE TO SAFE RECOMMENDED LIGHTING
PROCEDURES CAN RESULT IN INJURY, DAMAGE TO PROPERTY OR EVEN DEATH.
!
Are flames above
the burner ring
or below?
Not enough air
Too much fuel
abovebelow
Adjust valve
setting down
(between 1 to 2)
Please note:
If the burner pot is coated
in carbon it will not be
possible to balance
combustion and eliminate
soot until it has been
cleaned!
Close barometric
damper
(if applicable)
Turn on fan air
Please note:
If the chimney is configured in a
way that will restrict draft (i.e. too
short, sharp bends) it may not be
possible to draw enough air into
the appliance to balance
combustion
Allow 20
minutes after
adjustment to
balance
combustion
If soot is not
eliminated,
increase air
using fan
If adjusting air/fuel
fail to balance
combustion. Shut off
the appliance &
clean/service the
metering valve
See page 43
If flames fail to
become
established at the
burner ring, reduce
fuel settings by one
increment
If increasing air /
reducing fuel fails to
correct the issue, air
is unable to reach
the burner. Shut off
appliance and clean
the burner pot
See page 42
Appliance
blows out
Draft generated
in chimney is
weak
Does the
chimney have
less than 4
continuous
vertical feet
of rise?
Does the
chimney have
more than 2
elbows or
sharp bends?
no
Are the
flames
burning
above the
burner ring?
no
Chimney does
not match install
requirements
See pages 20-21
yes
Chimney does
not match install
requirements
See pages 20-21
yes
Check to make
sure exhaust
can exit
chimney cap
and is not
discouraged
from doing so
by overhangs or
adjacent
structures
yes
Chimney &
cap may need
to be cleaned
See page 42
no
Please note:
If the chimney is configured in a
way that will restrict draft (i.e. too
short, sharp bends) it may be
impossible to generate enough
draft in it to sufficiently support
combustion inside the appliance
APPLIANCE BLOWS OUT
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