Scheduled Maintenance - Goodman GM9S80 Service And Troubleshooting

SCHEDULED MAINTENANCE

HIGH VOLTAGE
Disconnect ALL power before servicing or
changing any electrical wiring. Multiple pow-
er sources may be present. Failure to do so
may cause property damage, personal injury
or death.
If you must handle the ignitor, handle with care. Touching the
ignitor body with bare fingers, rough handling, or vibration
could result in early ignitor failure. Only a qualified servicer
should ever hanlde the ignitor.
ANNUAL INSPECTION
The furnace should be inspected by a qualified installer, or
service agency at least once per year. This check should be
performed at the beginning of the heating season. This will
ensure that all furnace components are in proper working or-
der and that the heating system functions appropriately. Pay
particular attention to the following items. Repair or service
as necessary.
• Flue pipe system. Check for blockage and/or leakage.
Check the outside termination and the connections at
and internal to the furnace.
• Combustion air intake pipe system (where applicable).
Check for blockage and/or leakage. Check the outside
termination and the connection at the furnace.
• Heat exchanger. Check for corrosion and/or buildup
within the heat exchanger passageways.
• Burners. Check for proper ignition, burner flame, and
flame sense.
• Drainage system. Check for blockage and/or leakage.
Check hose connections at and internal to furnace.
• Wiring. Check electrical connections for tightness and/
or corrosion. Check wires for damage.
• Filters.
Air Filter
Never operation furnace without a filter installed as dust and
lint will build up on internal parts resulting in loss of efficien-
cy, equipment damage, and possible fire.
Filters must be used with this furnace. Filters do not ship
with these furnaces but must be provided by the installer for
proper furnace operation.
WARNING
CAUTION
WARNING
Remember that dirty filters are the most common cause of
inadequate heating or cooling performance.
HIGH VOLTAGE
Disconnect ALL power before servicing, re-
moving the filter or performing any mainte-
nance. Multiple power sources may be present.
Failure to do so may cause property damage,
personal injury or death.
Maintenance
Improper filter maintenance is the most common cause of
inadequate heating or cooling performance. Filters should
be cleaned (permanent) or replaced (disposable) every two
months or as required. It is the owner's responsibility to keep
air filters clean. When replacing a filter, it must be replaced
with a filter of the same type and size.
Filter Removal
Depending on the installation, differing filter arrangements
can be applied. Filters can be installed in the central re-
turn register, the bottom of the blower compartment (upflow
only), a side panel external filter rack kit (upflow only), or
the ductwork above a counterflow furnace. A media air filter
or electronic air cleaner can be used as an alternate filter.
The filter sizes given in the Product Design section of this
manual or the product Specification Sheet must be followed
to ensure proper unit performance. Refer to the following
information for removal and installation of filters.
FILTER REMOVAL PROCEDURE
Media Air Filter or Electronic Air
Cleaner Removal
Follow the manufacturer's directions for service.
Upright Counterflow Filter Removal
To remove filters from the ductwork above an upright coun-
terflow installation:
1. Turn off electrical power to furnace.
2. Remove access door in ductwork above furnace.
3. Remove filters.
4. Remove blower compartment door. Vacuum compart-
ment. Replace blower compartment door.
5. Replace filters opposite of removal.
6. Replace access door in ductwork.
Horizontal Unit Filter Removal
Filters in horizontal installations are located in the central
return register.
WARNING
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