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PROBLEM CAUSE SOLUTION PROCEDURE
Re-size fuel Refer to “Wood”
Add Water
Refer to “Filling the
HEATMOR™ Outdoor Fur-
nace Initially with Water”
Use dryer wood. Refer to “Types of Wood”
Clean Chimney Refer to “Chimney”
Clean Flue Refer to “Flue”
Clean Air Box(s) Refer to “Air Box(s)”
Clean out ashes
Refer to “Ash Management
and Ash Removal”
Water temperature not
being held in the 145-185˚
Fahrenheit range
Contact your Local Dealer
Excessive Moisture in Fuel Use dryer wood Refer to “Types of Wood”
Furnace boils or
rattles before reaching
maximum operating
temperature
Improper Anti-freeze
Use recommended
Anti-freeze
Contact your Local Dealer
Firebox Door pops or
rattles
Elbow(s) or hoses are
clogged, restricting water
ow through door hoses.
Unclog or replace elbow(s)
or hoses.
Refer to “Firebox Door
Hoses and Elbows.”
Loading fuel to close to the
rebox door.
Load your fuel away from
the rebox door.
Refer to “Loading wood
into the HEATMOR™”
Very hot burning re.
Mix in some bigger or less
cured wood.
Refer to “Wood”
Building too Warm
Defective in-house
thermostat
Replace thermostat Contact your Local Dealer
Air leakage around Door. Replace Door Gasket
Refer to “Firebox Door
Gasket”
Electronic Aquastat Con-
troller malfunction.
Replace Electronic
Controller
Refer to “Electrical (Elec-
tronic Aquastat Controller)”
Outdoor furnace is over-
heating
Check for air leaks
Refer to “Checking for Air
Leaks”
Controls for heating appli-
ances in building need to
be adjusted.
Adjust, relocate, add more
controls to monitor and
control heat.
Contact your Local Dealer
Water Controls in building
Add controls to control hot
water ow for heat.
Contact your Local Dealer
Too much supply water
going to certain heating
appliances
Adjust water ow. Contact your Local Dealer
Outdoor temperatures
are warmer and supply
controls have not been
adjusted.
Adjust water ow. Contact your Local Dealer
High limit switch set too
low
Adjust setting.
Refer to “Electrical (High
Water Temperature Safety
Shutoff Control)”
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