Nordyne Single Package Gas Heating/Electric Cooling Unit User's Information Manual page 7

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.
MAINTENANCE ITEM
VERIFY AREA AROUND UNIT IS FREE
OF COMBUSTIBLE MATERIALS
VERIFY COMBUSTION AND VENTILATION
AIR ARE NOT RESTRICTED
VERIFY THERE ARE NO SIGNS OF PHYSICAL
DETERIORIZATION OF THE UNIT
VERIFY BURNER FLAME
INSPECT UNIT SUPPORT
INSPECT RETURN-AIR CONNECTIONS
CLEAN OR REPLACE FILTER(S)
CLEAN BLOWER COMPARTMENT
CLEAN BURNER VESTIBULE
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.
Figure 3. Burner Inspection
FREQUENCY OF MAINTENANCE
BEGINNING OF
EACH HEATING SEASON
X
X
X
X
X
X
X
Table 1. Maintenance Schedule
The filters are not dirty.
BEGINNING OF EACH
COOLING SEASON
X
X
X
X
MONTHLY
X
X
X
X
X
7