35
T
T
T
T
T
R
R
R
R
R O U B L E S H O O
O U B L E S H O O
O U B L E S H O O
O U B L E S H O O
O U B L E S H O OT I N G
T I N G
T I N G
T I N G
T I N G
& M
& M
& M
& M
& M
A I N T E N A N C E
A I N T E N A N C E
A I N T E N A N C E
A I N T E N A N C E
A I N T E N A N C E
controls to their containers before touching any ungrounded
object.
D
D
D
D
D
IAGNOSTIC
IAGNOSTIC
IAGNOSTIC
IAGNOSTIC
IAGNOSTIC
C
C
C
C
C
HART
HART
HART
HART
HART
HIGH
VOLTAGE
!
T
O
AVOID
PERSONAL
INJURY
OR
DEATH
DUE
TO
ELECTRICAL
SHOCK
,
DISCONNECT
ELECTRICAL
POWER
BEFORE
PERFORMING
ANY
SERVICE
OR
MAINTENANCE
.
WARNING
Refer to the
Troubleshooting Chart
at the end of this manual for
assistance in determining the source of unit operational problems.
The dual 7-segment LED display will display an error code that may
contain a letter and number. The error code may be used to assist in
troubleshooting the unit.
F
FF
F
F
AULT
AULT
AULT
AULT
AULT
R
R
R
R
R
ECALL
ECALL
ECALL
ECALL
ECALL
The ignition control is equipped with a momentary push-button
switch that can be used to display the last six faults on the dual 7-
segment LED’s. The control must be in Standby Mode (no thermo-
stat inputs) to use the feature. Depress the switch for approxi-
mately 2 seconds. Release the switch when the LED’s are turned
off. The last six faults will be displayed most recent to least recent
on the dual 7-segment LED’s.
NOTE:
NOTE:
NOTE:
NOTE:
NOTE: Consecutively repeated faults are stored a maximum of three
times. Example: A clogged return air filter causes the furnace limit
to trip repeatedly. The control will only store this fault the first three
consecutive
times the fault occurs.
R
R
R
R
R
ESETTING
ESETTING
ESETTING
ESETTING
ESETTING
F
F
F
F
F
ROM
ROM
ROM
ROM
ROM
L
L
L
L
L
OCKOUT
OCKOUT
OCKOUT
OCKOUT
OCKOUT
Furnace lockout results when a furnace is unable to achieve igni-
tion after three attempts during a single call for heat. It is character-
ized by a non-functioning furnace and a
EEEEE 00000
code displayed on the
dual 7-segment display. If the furnace is in “lockout”, it will (or can
be) reset in any of the following ways.
1. Automatic reset. The integrated control module will
automatically reset itself and attempt to resume normal
operations following a one hour lockout period.
2. Manual power interruption. Interrupt 115 volt power to the
furnace.
3. Manual thermostat cycle. Lower the thermostat so that
there is no longer a call for heat for 1 -20 seconds then reset
to previous setting.
NOTE:
NOTE:
NOTE:
NOTE:
NOTE: If the condition which originally caused the lockout still
exists, the control will return to lockout. Refer to the
Diagnostic
Chart
for aid in determining the cause.
M
M
M
M
M
A I N T E N A N C E
A I N T E N A N C E
A I N T E N A N C E
A I N T E N A N C E
A I N T E N A N C E
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
A
A
A
A
A
NNUAL
NNUAL
NNUAL
NNUAL
NNUAL
I
I
I
I
I
NSPECTION
NSPECTION
NSPECTION
NSPECTION
NSPECTION
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 fur-
nace components are in proper working order and that the heating
system functions appropriately. Pay particular attention to the fol-
lowing 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.
•
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.
F
FF
F
F
ILTERS
ILTERS
ILTERS
ILTERS
ILTERS
T
O
ENSURE
PROPER
UNIT
PERFORMANCE
,
ADHERE
TO
THE
FILTER
SIZES
GIVEN
IN
THE
RECOMMENDED
M
INIMUM
F
ILTER
S
IZE
T
ABLE
OR
S
PECIFICATION
S
HEET
APPLICABLE
TO
YOUR
MODEL
.
CAUTION
F
ILTER
M
AINTENANCE
Improper filter maintenance is the most common cause of inad-
equate heating or cooling performance. Filters should be cleaned
(permanent) or replaced (disposable) every two months or as re-
quired. When replacing a filter, it must be replaced with a filter of
the same type and size.
F
ILTER
R
EMOVAL
Depending on the installation, differing filter arrangements can be
applied. Filters can be installed in either the central return register
or a side panel external filter rack (upflow only). A media air filter or
electronic air cleaner can be used as an alternate filter. Follow the
filter sizes given in the Recommended Minimum Filter size table to
ensure proper unit performance.
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