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6. Circulation blower vibrates
during operation.
7. Odor detected in home
during initial firing.
PROBABLE CAUSE
• Defective Blower.
• Improper wiring.
• "OFF" setting on fan limit
control is low.
• Defective fan limit.
• Improper wiring.
• Screw on squirrel cage is not
tight.
• Balance weights on squirrel cage
have become dislocated.
• Defective main bearings
• There is an oily film that remained
on the steel after the manufacturing
process. Firing the unit has raised
the temperature of the firebox to a
level that
SUGGESTED REMEDY
Contact your supplier for replace-
ment.
Review wiring diagram. If wired cor-
rectly, seek professional assistance.
Remove cover on fan limit and check
for the proper setting. The point in-
dicators should be set at 100° "OFF"
and 150° "ON". DO NOT attempt to
adjust the fan limit by manually ad-
justing the dial.
Check by moving "ON" or "OFF"
point indicator to a temperature posi-
tion where blower should turn off. If
the blower continues to run, replace
the limit.
Review wiring diagram. If unit is
wired correctly, seek professional
assistance.
Check squirrel cage alignment and
position so that it does not drag on
the housing during rotation; then
tighten the screw sufficiently to fas-
ten the squirrel cage securely to the
shaft.
You may attempt to adjust the weights
yourself to obtain an acceptable bal-
ance. If you are unsuccessful, con-
tact your supplier.
Return the blower to your supplier
for replacement.
This odor should disappear after a
few hours of usage.
PROBLEM
4. Circulation blower . . .
C
ONTINUED
5. Circulation blower runs
continuously.
TROUBLESHOOTING
TROUBLESHOOTING
TROUBLESHOOTING
TROUBLESHOOTING
TROUBLESHOOTING
