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Turning the Heater OFF
Change the thermostat's system mode to OFF and the fan
mode to AUTO (See Figure 1). NOTE: The system will not
operate, regardless of the temperature selector setting.
CAUTION:
For optional A/C or H/P systems, always wait
at least fi ve minutes after the system shuts off
before restarting the system.
UNIT MAINTENANCE
WARNING:
Shut off all electrical power to the unit before
performing any maintenance or service on the
system. Failure to comply may result in personal
injury or death.
CAUTION:
There are No user serviceable parts inside the
control panel. DO NOT OPEN.
NOTE: All servicing of this heating appliance other than
the normal maintenance described in this section must
be done by authorized trained service personnel. Do
not attempt any servicing which requires opening of the
control panels.
•
Proper maintenance is most important to achieve the
best performance from the appliance and should be
performed frequently at the beginning of each heating
season.
• Keep the area surounding the unit clean. Keep the unit
clear of obstructions.
Furnace Filter
WARNING:
Never operate the furnace without a fi lter in
place. Accumulating dust in the return air can
build up on internal components, resulting
in loss of effi ciency, equipment damage, and
possible fi re.
•
E3 Furnaces are supplied with a single air fi lter when
shipped from the factory. It is recommended that the fi lter
be cleaned or replaced monthly. Newly built or recently
4
USER INFORMATION
renovated homes may require more frequent changing
until the construction dust has minimized. Filter sizes
shown in Table 6 (page 19) are available at most local
retailers.
necessary with fi lter of same dimensional size
•
Filters designed to remove smaller particles such as
pollen, may require additional maintenance.
Coil Filters
If a cooling coil is installed on your unit, the furnace fi lter
is not used. Remove coil fi lters, wash, and allow to dry.
Re-install coil fi lters to their original positions.
Blower Compartment
Dirt and lint can create excessive loads on the motor
resulting in higher than normal operating temperatures and
shortened service life. Vacuum or wipe clean the interior
of furnace cabinet. Clean all lint and dust from around the
furnace. It is recommended that the blower compartment
be cleaned of dirt or lint that may have accumulated in
the compartment or on the blower and motor as part of
regular maintenance.
If the unit fails to operate, check the following:
• Check the thermostat setting. Make sure the system
mode and temperature settings are correct.
• Check the electrical panel for tripped circuit breakers.
• Check the fi lters for dust accumulation.
• Check the unit and make sure it is clean and not covered
with grass or leaves.
• If the items above don't resolve your problems, then
call your nearest service technician. Please specify
the complete model and serial numbers shown on the
furnace data label for all warranty service and when
ordering replacement parts or optional equipment. Refer
to the replacement parts list provided with the furnace
for part numbers.
Inspect fi lters frequently and replace when
TROUBLESHOOTING
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