40
Section 8 - Operating Instructions
Smoke in Hopper
How air flows through the furnace is an important
part of optimal operation. Smoke in the hopper is
an indication that the air flow through the furnace is
restricted, obstructed or different than it should be.
CAUTION
Operating for extended periods of time with air
flow through the furnace restricted (i.e., smoke
in the hopper) can damage components in the
furnace.
If smoke in the hopper occurs, check the following:
• Heat exchanger obstructed - clean the heat
exchanger (see Fig. 55).
• Aerator covered by ash - do not allow ash in
the burn chamber to accumulate over the aerator.
Use the cleaning rod to pull ash forward to ash
collection area.
• Carbon buildup - inspect the burner auger where
it enters the firebox for carbon buildup and clean
if necessary.
• Chimney is obstructed - inspect the chimney and
chimney connector and clean if dirty or obstructed.
If a spark arrestor is installed, ensure it is not dirty
or obstructed.
• Chimney too short - may need to increase the
height of the chimney.
Fig. 55
Incorrect
Inadequate Flow
(Cleaning Needed)
Correct
Proper Flow
