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PROBLEM POSSIBLE CAUSE SOLUTION
1. Main blower vibrating
when in use.
Loose Allen screw on squirrel cage.
Bad motor bearings.
Weights on squirrel cage wheel moved in ship
-
ment.
Tighten Allen screw, be sure squirrel
cage did not move to one side or the
other.
Return blower to your local dealer
for a replacement.
Try to adjust it yourself or return
blower for replacement.
2. Main blower continues to
run.
Manual control turned on (fan/limit control). Check fan/limit control switch. Push
for manual, pull for auto. If in auto
position, replace fan/limit control.
3. Main blower won’t turn
on.
Defective fan/limit control.
Defective 3-speed blower switch.
Defective circulation blower motor.
Replace.
Replace.
Replace.
4. Draft blower staying on. Wall thermostat bad, check by turning temp. to
60° then check if draft blower is running.
Short in thermostat wire.
Home not getting heat needed to satisfy wall
thermostat.
“Heat anticipator” not set properly on thermo-
stat.
Replace wall thermostat.
Check all wiring again.
Check on spec’s chart to be sure
your unit is large enough for your
home. Be sure installation is proper:
check with your local heating man.
Adjust “anticipator” to 0.3.
5. Draft blower not turning
on. NOTE: Be sure switch
on blower is on.
Switch blower to the off position. Bad wall Ther-
mostat; check by turning it up to 80° and if the
draft blower does not turn on, replace thermo-
stat.
Lo limit bypass on “off”.
Replace thermostat.
When starting up it is necessary to
turn toggle switch on front of comfort
control center to “on” until unit
warms up.
6. Smell an odor from the
first fire in the furnace.
New steel, small amounts of residue on the
steel.
Bad weld, if smell continues for two weeks of
burning.
This will disappear in a matter of
hours.
Contact dealer immediately.
7. Not getting heat in the
home.
Unit may be too small for your home; check
specification chart.
Improper insulation in home allowing heat to
escape.
Improper hookup to furnace.
Ducting not sized properly for unit.
Replace with a larger unit or have
regular furnace help.
Reinsulate!
Check installation drawings and/or
consult your local heating man.
8. Flames coming out the
door when loading.
Excessive amount of gases on top of the fire
box and igniting when given oxygen from open
door. NOTE: This is one of your Woodchuck
safety features built into every unit with a dou
-
ble latch system.
Large amounts of unburned wood. Try to load when fire is at its lowest
point, but have enough embers left
for a good start again. NOTE: Only
you will know this time after some
experience with your unit and instal
-
lation.
TROUBLE SHOOTING