If the current is zero, the amber LED
is out, and the integrated furnace
control board repeats the ignition
cycle four times. If the furnace
doesn't light, the IFC board locks the
unit out.
REASONS FOR BURNER
LOCKOUT
BURNER NEVER LIGHTS, ZERO
DC µA FLAME CURRENT
1. Damaged igniter.
2. Igniter not positioned in the
flame.
3. Damaged integrated furnace
control board.
4. Failed gas valve.
5. No gas supply.
6. An open pressure switch.
7. Broken wires.
8. Broken Molex plug or faulty plug
connections.
BURNER LIGHTS, ZERO DC µA
FLAME CURRENT
1. Damaged flame sensor.
2. Extremely low gas pressure.
3. Ungrounded furnace.
4. Damaged integrated furnace
control board.
5. Reverse polarity of the power
supply.
6. Broken Molex plug or faulty plug
connections.
7. Faulty flame sensor connection.
8. Flame sensor shorted to furnace
chassis.
BURNER LIGHTS, LOW µA FLAME
CURRENT (Less Than 1.5 µA)
1. Damaged integrated furnace
control board.
2. Poorly grounded furnace.
3. Poorly positioned sensor.
4. Low supply voltage.
5. Low gas pressure.
6. Moisture in the Molex plug.
7. Broken Molex plug or faulty plug
connections.
INTEGRATEDFURNACE
CONTROL(IFC) BOARD
REPLACEMENTKIT
(62-24044-91)
All previous IFC boards used on the
Low Profile furnace are now
replaceable with the Honeywell
S9201 E2001 control.
This
replacement part is for the
following units: (-)GOG, (-)GLG,
(-)GVH, (-)GLH, (-)GPH, built before
date code 3294 and with the "FUEL
CODES" BR, BS, BT, CA, CD, CE,
CG, CH, CK, CL, CM, CS, CT, CU,
CV,
cw, ex, CY, DA, DB.
NORMAL INSTALLATIONS
A WARNING: TURN OFF
ELECTRICAL POWER TO THE
FURNACE BEFORE BEGINNING
ANY MAINTENANCE. FAILURE TO
DO SO CAN CAUSE ELECTRICAL
SHOCK RESULTING IN SEVERE
PERSONAL INJURY.
NOTE: Install the IFC boards by
gently pressing in on the mounting
clip stand. DO NOT put pressure on
the body of the control board.
1. Replacing Honeywell board with
Honeywell board
A. Disconnect the wires and
remove the old control.
B. Connect all wires as with the
previous control.
C. Set Blower Off Timing as with
the previous control - see
page 76.
D. The replacement control is
preset to 120 seconds.
2. Replacing UTEC board with
Honeywell board
A. Disconnect the wires and
remove the old control.
B. Connect all wires as with the
previous control, the terminal
locations are different but
functionally similar.
C. Set Blower Off Timing as with
the previous control - see
page 76.
D. The replacement control is
preset to 120 seconds.
The Honeywell S9201 E2001 IFC has
four "Quick-Connect'' terminals for
connecting the motor speed leads.
1. FAN - Motor runs on this speed
continuously when the
thermostat is set to the "FAN
ON" position.
2. COOL - Connects to the desired
cooling speed.
3. HEAT - Connect to the desired
heating speed.
4. HEAT/COOL-Connects to the
desired speed if the heating and
cooling speeds are the same.
IMPORTANT: DO NOT CONNECT
ANY MOTOR SPEEDS TO BOTH
THE "HEAT' AND "COOL"
TERMINALS IF USING THE
"HEAT/COOL" TERMINAL.
5. If the heating and continuous fan
speeds are the same, connect a
"piggy-back" jumper across
"FAN" and "HEAT".
73
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