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over the phone or save valuable time through knowledgeable
preparation for the service call.
Regular dealer maintenance
In addition to the type of routine maintenance you might be
willing to do, your furnace should be inspected regularly by a
properly trained service technician. A semiannual inspection
(or annual inspection, at least) should include the following:
1. Inspection of all flue product passages including the burn-
ers, heat exchanger, relief box, and vent pipe.
2. Inspection of all combustion and ventilation air
passages and openings.
3. Close check of all gas pipes leading to and inside of your
furnace.
4. Inspection, cleaning, and lubrication (when required) of
the blower motor and wheel.
NOTE: Refer to the unit Service Procedures for blower motor
oiling information. When required, the motor must be oiled by
a qualified service technician.
5. Routine inspection and cleaning/replacement of the air filter.
6. Inspection of all supply- and return-air ducts for obstruc-
tions, air leaks, and insulation. Any problems found should
be resolved at this time.
7. Inspection of furnace installation for proper support and any
obvious deterioration of the furnace. The support must be
sound and without sags, gaps, cracks, etc., around the fur-
nace base so as to provide an air seal between the support
and furnace.
8. A check for loose connections attaching individual compo-
nents. Inspection of all electrical wiring and their connections.
9. Operational check of the furnace itself to determine working
condition. Repair or adjustment should be made at this time.
Ask your servicing dealer for further details about an econom-
ical service contract that covers seasonal inspections.
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