Whirlpool WGFM195 Installation Instructions Manual page 41

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Symptoms of
Abnormal
Associated
Operation
LED Code Fault Description Possible Causes
Induced draft
3 flashes
blower runs
continuously
with no further
furnace
operation.
Integrated
control module
diagnostic LED
is flashing
3 flashes.
Circulator
4 flashes
blower runs
continuously.
No furnace
operation.
Integrated
control module
diagnostic LED
is flashing
4 flashes.
Induced draft
5 flashes
blower and
circulator
blower runs
continuously.
No furnace
operation.
Integrated
control module
diagnostic LED
is flashing
5 flashes.
No furnace
6 flashes
operation.
Integrated
control module
diagnostic LED
is flashing
6 flashes.
Pressure switch
Pressure switch hose
blocked, pinched or
circuit is not
connected improperly.
closed.
Blocked flue and/or inlet
Induced draft
air pipe, blocked drain
blower is
system or weak induced
operating.
draft blower.
Incorrect pressure
switch setpoint or
malfunctioning switch
contacts.
Loose or improperly
connected wiring.
Primary limit or
Insufficient conditioned
air over the heat
auxiliary limit
exchanger. Blocked
circuit is open.
filters, restrictive
ductwork, improper
circulator blower speed,
or failed circulator
blower.
Faulty primary limit
switch.
Loose or improperly
connected wiring.
Flame sensed
Short to ground in flame
with no call for
sense circuit.
heat.
Rollout limit
Flame rollout.
switch open.
Misaligned burners,
Integrated
blocked flue and/or air
control module
inlet pipe or failed
fuse is blown.
induced draft blower.
Loose or improperly
connected wiring.
Short in 24-volt AC
control circuits or safety
circuits.
Faulty rollout limit
switch.
Corrective Actions
Inspect pressure
switch hose. Repair/
replace, if necessary,
Inspect flue and/or
inlet air piping for
blockage, proper
length, elbows and
termination.
Check drain system.
Correct as necessary.
Correct pressure
switch setpoint or
contact motion.
Tighten or correct
wiring connection.
Check primary limit
switch. Replace if
necessary.
Check filters and
ductwork for blockage.
Clean filters or remove
obstruction.
Check circulator
blower speed and
performance. Correct
speed or replace
blower if necessary.
Tighten or correct
wiring connection.
Correct short at flame
sensor or in flame
sensor wiring.
Check burners for
proper alignment.
Check flue and air inlet
piping for blockage,
proper length, elbows
and termination.
Correct as necessary.
Check rollout limit
switch. Replace if
necessary.
Check induced draft
blower for proper
performance. Replace
if necessary.
Tighten or correct
wiring connection.
Repair short in 24-volt
AC control/safety
circuit(s).
Replace integrated
control module fuse
(3A).
Notes and
Cautions
Turn off power
prior to repair.
Replace pressure
switch with
correct
replacement part.
Replace induced
draft blower with
correct
replacement part.
Turn off power
prior to repair.
Replace primary
switch with
correct
replacement part.
Replace
circulator blower
with correct
replacement part.
Turn off power
prior to repair.
Turn off power
prior to repair.
Replace induced
draft blower with
correct
replacement part.
Replace
integrated control
module fuse with
3A automotive
fuse.
Read precautions
in "Electrostatic
Discharge"
section of
manual.
Replace rollout
limit switch with
correct
replacement part.
See "Vent/Fluie
Pipe" section for
piping details.
41

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