73
Rev. 05/2020
PROBLEM
CAUSE
SOLUTION
REFERENCE
Flue Plugged
Clean flue
“Top Rectangular
Flue”
Blower fins are full
of dust
Clean blowers
“Steps to Maintain
your Blower and
Flipper Assembly”
Blowers not running
properly or up to
speed
Clean blowers
“Steps to Maintain
your Blower and
Flipper Assembly”
Ashes in Air Box(s)
Clean Air Box(s)
“Air Box(s)”
Too many ashes in
Firebox restricting
air flow
Clean out ashes
with Auger
“Ash Management
and Ash Removal”
Restricted air flow
into Blower(s) air
inlet
Clean Blowers
“Steps to Maintain
your Blower and
Flipper Assembly”
Too much heat draw
on furnace
Verify furnace size
for application
Local Dealer
Heat Transfer Fluid
(HTF) to low
Add HTF
“Filling the
HEATMOR™
Outdoor Furnace
Initially with HTF”
Furnace has
excessive moisture
in Firebox
Chimney plugged
Clean Chimney
“Chimney
Stub/Chimney
Extension(s)”
Flue Plugged
Clean flue
“Flue”
Ashes in Airbox(s)
Clean Air Box(s)
“Air Box”
Too many ashes in
Furnace
Clean out ashes
“Ash Management
and Removal”
