Product Manual
3.
Problem: Flames discharging from fuel door during reloading.
Troubleshooting
1.
Problem: Circulation blower runs constantly.
NOTE: Make sure the white button on the fan limit control is pulled out and in the “auto” position.
• Insufcient natural draft or an
obstruction in the ue system.
• See Troubleshooting Problems #6 and #9.
• Fire chamber lled to capacity with
unburned fuel.
• Do not attempt to overload the furnace.
Possible Causes:
• Opening the door has provided
additional oxygen which has ignited the
accumulated gases from partially spent
fuel.
Remedies:
• Always open the door cautiously and allow the safety latch system to
perform its designed function, containing gases within the re chamber.
Possible Causes:
• Fan limit control is in “TEST” mode:
white button is pushed in.
Remedies:
• Pull white button out into the “AUTO” position.
• “OFF”setting on fan limit control is low. • Remove cover on fan limit control and check for the proper setting. The
point indicators should be set at 100°F “OFF” and 150°F “ON.” Do NOT
attempt to adjust the temperature indicators on the dial.
• Defective fan limit control. • Check by moving the “ON” and “OFF” point indicator to a temperature
position where blower should turn off. If the blower continues to run, replace
the fan limit control.
• Improper wiring. • Review wiring diagram. If unit is wired correctly, seek professional
assistance.
2.
Problem: Circulation blower vibrates during operation.
• 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.
• Dirt and debris on blower. • After the unit is cold, inspect the blower housing and clean as needed.
Possible Causes:
• Set screw on squirrel cage is not tight.
Remedies:
• Check squirrel cage alignment and position so that it does not drag on the
housing during rotation, then tighten the screw sufciently to fasten the
squirrel cage securely to the shaft.
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