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in the relatively cool chimney flue of a slow-burning fire. As
a result, creosote residue accumulates on the flue lining.
When ignited, this creosote makes an extremely hot fire.
The chimney and chimney connector should be inspected
at least twice a month during the heating season to
determine if a creosote build-up has occurred. If creosote
has accumulated it should be removed to reduce the risk
Troubleshooting Poor Combustion and
Low Heat Output:
Symptoms:
Cannot achieve the set temperature.
—
Excessive smoke for extended periods of time.
—
No exhaust coming from the chimney.
—
Poor general functionality.
—
Follow the steps below to inspect and test the
components that may influence these factors.
CAUTION: Always shut the furnace down and allow it to
cool sufficiently before inspecting or servicing.
Draft Fan
Place the furnace in Manual Mode. Turn on the Draft
—
Fan.
Confirm the fan motor is turning by checking the fan
—
motor. The motor cooling fan is visible with the side
cabinet door open and it should be rotating when the
Draft Fan is turned on.
If the motor is not turning check the breaker for the fan
—
motor. If this breaker has tripped check the Draft Fan for
blockage and build-up, and clean if necessary. Reset the
breaker and check for motor rotation. If the motor will
not turn it may need to be replaced.
Solenoid
Inspect the damper and solenoid. The solenoid should
—
by fully opening the damper when the Draft Fan is on
and closing the damper when it is turned off.
If the solenoid is not opening check the breaker. Reset
—
if it has tripped and check again for proper operation. If
28
Heatmaster
B Series Furnace Operating Manual
SS
of a chimney fire.
CAUTION: Make certain that all electrical power to the
furnace and components is shut off. It can be washed
using water and a mild nonabrasive cleaner suitable for
painted surfaces.
ATTENTION: Avoid direct water pressure to electrical
components and connections.
TROUBLESHOOTING
—
Chimney & Fan Wheel:
—
Lower Flue Area:
—
Walking Grate:
—
—
—
the damper remains closed the solenoid may need to
be replaced.
Test for airflow by covering the damper opening with
a piece of paper while the draft fan is on. If the paper
is drawn against the opening this confirms the fan is
drawing air.
With the furnace off, check the chimney for blockage
and the fan for soot build-up. They should both be
clean for optimum airflow.
With the furnace off, check the lower flue area for
ash build-up that may be restricting airflow. Clean as
necessary.
With the furnace off, check the walking grate for
blockage. Clean the grate and make sure the gaps
between the walking fingers are clear to allow good
airflow.
Remove one of the walker fingers by lifting the front and
rear of the finger evenly. Inspect the chamber below to
ensure that it is free from blockage. The drag auger in
the chamber should be keeping that area clear. Reinstall
the finger.
Test the walking grate by placing the furnace in Manual
Mode and turning on the Walker. The fingers should
be sliding freely while rising and falling slightly above
and below the fixed grate as they move forward and
backwards.
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