43
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:
Auxiliary Limit Switch
Blower Cutoff
Blower Housing
Blower Motor
Blower Mounting Bracket
Blower Wheel
Door Switch
Flame Sensor
Gas Manifold
Gas Valve
Heat Exchanger
Igniter
Induced Draft Blower
Integrated Control Module
Natural Gas Orifice
Pressure Switch
Primary Limit Switch
Propane Gas Orifice
Rollout Limit Switch
Transformer
Induced Draft and Circulator Blowers
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 (Quali-
fied Servicer Only)
Annually inspect the drain tubes, drain trap, and field-sup
-
plied drain line for proper condensate drainage. Check drain
system for hose connection tightness, blockage, and leaks.
Clean or repair as necessary.
T
O
AVOID
ELECTRICAL
SHOCK
,
INJURY
OR
DEATH
,
DISCONNECT
ELECTRICAL
POWER
BEFORE
PERFORMING
ANY
MAINTENANCE
. I
F
YOU
MUST
HANDLE
THE
IGNITER
,
HANDLE
WITH
CARE
. T
OUCHING
THE
IGNITER
ELEMENT
WITH
BARE
FINGERS
,
ROUGH
HANDLING
OR
VIBRATION
COULD
DAMAGE
THE
IGNITER
RESULTING
IN
PREMATURE
FAILURE
. O
NLY
A
QUALIFIED
SERVICER
SHOULD
EVER
HANDLE
THE
IGNITER
.
WARNING
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.
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.
