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Flame Sensor (Qualified Servicer Only)
Under some conditions, the fuel or air supply can create a
nearly invisible coating on the flame sensor. This coating
acts as an insulator causing a drop in the flame sense
signal. If the flame sense signal drops too low the furnace
will not sense flame and will lock out. The flame sensor
should be carefully cleaned by a qualified servicer using
steel wool.
Flue Passages (Qualified Servicer Only)
The heat exchanger flue passageways should be inspected
at the beginning of each heating season.
BEFORE LEAVING AN INSTALLATION
•
Cycle the furnace with the thermostat at least three
times. Verify cooling and fan only operation.
•
Review the Owner’s Manual with the homeowner and
discuss proper furnace operation and maintenance.
•
Leave literature packet near furnace.
REPAIR AND REPLACEMENT PARTS
•
When ordering any of the listed functional parts, be
sure to provide the furnace model, manufacturing, and
serial numbers with the order.
•
Although only functional parts are shown in the parts
list, all sheet metal parts, doors, etc. may be ordered
by description.
•
Parts are available from your distributor.
Functional Parts List-
Gas Valve
Blower Motor
Gas Manifold
Blower Wheel
Natural Gas Orifice
Blower Mounting Bracket
Propane Gas Orifice
Blower Cutoff
Igniter
Blower Housing
Flame Sensor
Inductor
Rollout Limit Switch
Heat Exchanger with
Recuperator Coil
Primary Limit Switch
Auxiliary Limit Switch
Pressure Switch
Integrated Control Module
Induced Draft Blower
Transformer
Door Switch
Bluetooth Module
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 order 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.
• Wiring. Check electrical connections for tightness
and/or corrosion. Check wires for damage.
FILTERS
Filter Maintenance
Improper filter maintenance is the most common cause
of inadequate heating or cooling performance. Filters
should be cleaned (permanent) or replaced (disposable) as
required.
Burners
Visually inspect the burner flames periodically during the
heating season. Turn on the furnace at the thermostat
and allow several minutes for flames to stabilize, since any
dislodged dust will alter the flames normal appearance.
Flames should be stable, quiet, soft, and blue (dust may
cause orange tips but they must not be yellow). They
should extend directly outward from the burners without
curling, floating, or lifting off. Flames must not impinge on
the sides of the heat exchanger firing tubes.
Induced Draft and Circulator Blowers
CAUTION
To ensure proper unit performance, adhere
to the filter sizes given in the recommended
minimum filter size table or specification sheet
applicable to your model.
The bearings in the induced draft blower and circulator
blower motors are permanently lubricated by the
manufacturer. No further lubrication is required. Check
motor windings for accumulation of dust which may cause
overheating. Clean as necessary.
Condensate Trap and Drain System (Qualified
Servicer Only)
Annually inspect the drain tubes, drain trap, and field-
supplied drain line for proper condensate drainage. Check
drain system for hose connection tightness, blockage, and
leaks. Clean or repair as necessary.
