Whirlpool WGFD293 Instruction Manual download pdf (Page 45)

45

■ Induced draft

blower runs

continuously

with no further

furnace

operation.

■ Integrated

control module

LED display

provides “E2”

error code.

E2

■ Low-stage

pressure switch

circuit is not

closed.

■ Pressure switch

hose blocked,

pinched or

connected

improperly.

■ Blocked flue and/or

inlet air pipe,

blocked drain

system or weak

induced draft

blower.

■ Incorrect pressure

switch setpoint or

malfunctioning

switch contacts.

■ Loose or

improperly

connected wiring.

■ 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.

■ Check induced draft

blower performance.

Correct as necessary.

■ Correct pressure

switch setpoint or

contact motion.

■ Tighten or correct

wiring connection.

■ Turn off power prior to

repair.

■ Replace pressure

switch with correct

replacement part.

■ Replace induced draft

blower with correct

replacement part.

■ Circulator

blower runs

continuously.

No furnace

operation.

■ Integrated

control module

LED display

provides “E3”

error code.

E3

■ Primary limit or

auxiliary limit

circuit is open.

■ Rollout limit

circuit is open.

■ Insufficient

conditioned air

over the heat

exchanger.

Blocked filters,

restrictive

ductwork, improper

circulator blower

speed, or failed

circulator blower.

■ Flame rollout.

■ Misaligned

burners, blocked

flue and/or air inlet

pipe or failed

induced draft

blower.

■ Loose or

improperly

connected wiring.

■ Check filters and

ductwork for blockage.

Clean filters or remove

obstruction.

■ Check circulator

blower speed and

performance. Correct

speed or replace

blower if necessary.

■ Check burners for

proper alignment.

■ Check flue and air inlet

piping for blockage,

proper length, elbows

and termination.

Correct as necessary.

■ Check induced draft

blower for proper

performance. Replace,

if necessary.

■ Tighten or correct

wiring connection.

■ Turn off power prior to

repair.

■ See Specification

Sheet applicable to

your model for

allowable rise range

and proper circulator

speed.

■ See “Vent/Flue Pipe”

section for piping

details.

■ Induced draft

blower and

circulator

blower runs

continuously.

No furnace

operation.

■ Integrated

control module

LED display

provides “E4”

error code.

E4

■ Flame sensed

with no call for

heat.

■ Short to ground in

flame sense circuit.

■ Lingering burner

flame.

■ Slow closing gas

control valve.

■ Correct short at flame

sensor or in flame

sensor wiring.

■ Check for lingering

flame.

■ Verify proper operation

of gas control valve

■ Turn off power prior to

repair.

■ No furnace

operation.

■ Integrated

control module

LED display

provides “E5”

error code.

E5

■ Open fuse. ■ Short in low voltage

wiring.

■ Locate and correct

short in low voltage

wiring.

■ Turn off power prior to

repair.

■ Replace fuse with 3A

automotive fuse.

Symptoms of

Abnormal

Operation

Diagnostic/

Staus LED

Code Fault Description Possible Causes Corrective Actions Notes and Cautions

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