Installation Manual
39
service agency at least once per year. This check should be per-
formed 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.
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.
Check hose connections at and internal to furnace.
and/or corrosion. Check wires for damage.
-
-
return register or the ductwork near the furnace.
To remove:
ductwork.
4. Turn ON electrical power to furnace.
Refer to the Diagnostic Codes chart for assistance in deter-
mining the source of unit operational problems.
seconds. Then the fault codes will display beginning with
codes. After the stored fault codes have all displayed,
stored fault codes, the control will ignore any new call for
heat, cool or fan.
HIGH VOLTAGE !
T
O
AVOID
PERSONAL
INJURY
OR
DEATH
DUE
TO
ELECTRICAL
SHOCK
,
DISCONNECT
ELECTRICAL
POWER
BEFORE
PERFORMING
ANY
SERVICE
OR
MAINTENANCE
.
WARNING
will turn on to indicate return to normal status. If the switch
ignition after three attempts during a single call for heat. It is
characterized by a non-functioning furnace and a fault code
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.
If the condition which originally caused the lockout
still exists, the control will return to lockout. Refer to the
Troubleshooting Chart for aid in determining the cause.