26
Problem: Circulation blower vibrates during operation.
• Screw on squirrel cage is not
tight.
• Check squirrel cage alignment and position so that it does not drag
on the housing during rotation, then tighten the screw sufficiently to
fasten the squirrel cage securely to the shaft.
Possible Causes:
Remedies:
• Balance weights on squirrel cage
have become dislocated.
• You may attempt to adjust the weights yourself to obtain an
acceptable balance. If you are unsuccessful, contact your supplier.
• Return the blower to your supplier for replacement.
• Defective main bearings.
11.
• Debris in blower wheel.
• Remove debris from wheel.
Problem: Smoke smell in house.
• Make sure all seams of blower
housing are sealed and caulked.
• Hole in bottowm of blower housing for electrical cord not sealed.
Possible Causes:
Remedies:
12.
13.
Problem: Odor detected in home during initial firing.
• There is an oily film that remains
on the steel after the manu-
facturing process. Firing the
furance has raised the tempera-
ture of the fire box to a level that is
sufficient to vaporize the residue.
• The odor should disappear after a few hours of usage.
Possible Causes:
Remedies:
Problem: Excessive smoke discharge from fuel door during reloading.
• Insufficient draft.
• See #9.
Possible Causes:
Remedies:
• Obstructed chimney or clogged
chimney cap.
• See #16.
• See #8.
• Creosote build-up.
14.
Problem: Draft blower runs constantly.
• Defective wall thermostat.
• This can be checked by turning the thermostat to a lower setting
than the temperature in your home. If the draft blower continues to
run, the thermostat may be defective. Replace if necessary.
Possible Causes:
Remedies:
• Defective transformer relay center.
• Replace transformer relay center.
• Have a professional determine the proper size furnace and
insulation factor of your home.
• Home is not being supplied with
a sufficient amount of heat to
satisfy the wall thermostat.
15.
Summary of Contents for SF3048
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