Blower Performance Data - Whirlpool WGFM195 Installation Instructions Manual

Symptoms of
Abnormal Associated
Operation LED Code Fault Description Possible Causes
Normal furnace 7 flashes
operation.
Integrated
control module
diagnostic LED
is flashing
7 flashes.
No furnace 8 flashes
operation
Integrated
control module
diagnostic LED
is flashing
8 flashes.
Induced draft Continuous
blower runs flashes
continuously.
No furnace
operation.
Integrated
control module
diagnostic LED
is flashing
continuously.

Blower Performance Data

CFM and Temperature Rise vs. External Static Pressure
Model—Heating Motor
Speed as Shipped Speed
WGFM1950453BXA High
(MED-HI)
Med
Med-Lo
Low
WGFM1950703BXA High
(MED-HI)
Med
Med-Lo
Low
42
Flame sense Flame sensor is coated/
microamp signal oxidized.
is low.
Flame sensor incorrectly
positioned in burner
flame.
Lazy burner flame due to
improper gas pressure
or combustion air.
Problem with Improperly connected
igniter circuit. igniter.
Bad igniter.
Poor unit ground.
Poor burner ground.
Faulty integrated control
module.
Polarity of 115- Polarity of 115-volt AC
volt or 24-volt power to furnace or
power is integrated control
reversed. module is reversed.
Red and blue wires to
transformer are
reversed.
Poor unit ground.
BLOWER PERFORMANCE DATA
Tons External Static Pressure (Inches Water Column)
AC at
0.1 0.2
0.5"
ESP
CFM Rise CFM
3.0 1,352 29 1,318
2.5 1,214 32 1,172
2.0 997 40 994
1.5 757 52 753
3.0 1,449 41 1,409
2.5 1,192 50 1,172
2.0 981 61 962
1.5 750 79 730
Corrective Actions
Sand flame sensor if
coated/oxidized.
Inspect for proper
sensor alignment.
Compare current gas
pressure to rating plate
info. Adjust as needed.
Check and correct
wiring from integrated
control module to
igniter
Replace bad igniter.
Check and correct
furnace ground wiring
Replace faulty
integrated control
module.
Review wiring diagram
to correct polarity.
Verify proper ground.
Correct if necessary.
Reverse red and blue
wires connected to
transformer.
0.3 0.4
Rise CFM Rise CFM
30 1,260 31 1,202
34 1,123 35 1,064
40 960 41 923
52 734 54 704
42 1,326 45 1,273
51 1,141 52 1,094
62 943 63 917
81 714 83 692
Notes and
Cautions
Turn off power
prior to repair.
Sand flame
sensor with
emery cloth.
See "Vent/Flue
Pipe" section for
piping details.
See rating plate
for proper gas
pressure.
Turn off power
prior to repair.
Replace igniter
with correct
replacement part.
Replace
integrated control
module with
correct
replacement part.
Read precautions
in "Electrostatic
Discharge"
section of
manual.
Turn off power
prior to repair.
0.5 0.6 0.7
Rise CFM Rise CFM CFM CFM
33 1,128 35 1,044 955
37 1,012 39 938 859
43 884 45 817 741
56 674 59 620 524
47 1,201 49 1,194 1,136 1,018
54 1,046 57 973 904
65 888 67 830 764
86 657 90 620 570
0.8
853
741
611
438
793
665
502