7
Figure 3. Burner Inspection
The motors for the circulating air blower, outdoor fan, and
combustion blower are pre-lubricated at the factory. No
further oiling is required for the life of this product.
!
CAUTION:
Some components in the burner vestibule are at
high temperatures while the burners are
operating. Use caution to avoid personal injury.
4. Burner Maintenance:
Check the burner flames at the start of every heating
season. Set the thermostat to a temperature setting above
the room temperature. With the louvered service panel in
place, rotate the burner observation port to the open position
and visually inspect the burner assembly to make sure that
the flame is drawn directly into the center of the heat
exchanger tube (See Figure 3). In a properly adjusted burner
assembly the flame color should be blue, however, some
light yellow streaks may occur on the outer portions of the
flame.
Before Calling A Technician:
If the unit fails to operate in cooling, be certain of the
following:
1. The thermostat is operating properly. Refer to
“Cooling Operation.”
2. The electrical power to the unit is turned on.
3. The filters are not dirty.
If the unit fails to operate in heating, be certain of the
following:
1. The thermostat is operating properly. Refer to
“Heating Operation.”
2. The electrical power to the unit is turned on.
3. The gas is turned on.
4. The filters are not dirty.
