Whirlpool W10177459A - Display Fault;Error Codes

TECH SHEET - DO NOT DISCARD PAGE 3
FOR SERVICE TECHNICIAN’S USE ONLY PART NO. W10177459A
DISPLAY FAULT/ERROR CODES
The fault codes below would be indicated when attempting to start a
drying cycle, or after activating the Diagnostic Test Mode.
Display Description Explanation / Recommended Procedure
PF
Power
Failure
PF flashes to indicate that a power failure
occurred while the dryer was running.
■
Press Start to continue the cycle, or
press Pause/Cancel to clear the display.
L2
Low Line
Voltage
L2 flashes if low line voltage (less than
30 V) is detected at installation.
■
Check to see if a household fuse has
blown or a circuit breaker has tripped.
■
Confirm the power cord is properly in
-
stalled and plugged into the power outlet.
■
Check the relay connections on the
machine control electronics.
■
Gas Models Only: Check the P14
connection on the machine control
electronics.
AF
Low Air Flow
Condition
AF flashes if low inlet air flow is detected
at install.
■
Check to see if the vent run from the
dryer to the wall is crushed.
■
Perform steps under DIAGNOSTIC:
Displaying Inlet Air Flow, page 2.
F
:
01
Primary Control
Failure
F:01 flashes when there is a primary
control failure.
■
Replace the machine control electronics.
See Accessing & Removing the
Electronic Assemblies, page 9.
F
:
02
Keypad/
User Interface
Failure
F:02 flashes when there is a stuck button
or user interface mismatch. This fault code
appears ONLY when in the Diagnostic Test
Mode.
■
See TEST #6, page 8.
F
:
20
Heater Failure
F:20 flashes if no voltage is detected at the
heater relay. This fault code appears ONLY
when in the Diagnostic Test Mode.
■
Check that the wires are plugged in on
the heater assembly and at the relay on
the electronic control.
F
:
22
Outlet
Thermistor
Open
F:22 flashes if the outlet thermistor is open.
■
See TEST #4a, page 7.
F
:
23
Outlet
Thermistor
Shorted
F:23 flashes if the outlet thermistor has
shorted.
■
See TEST #4a, page 7.
F
:
24
Inlet
Thermistor
Open
F:24 flashes if the inlet thermistor is open.
This fault code appears ONLY when in the
Diagnostic Test Mode.
■
See TEST #4a, page 7.
F
:
25
Inlet
Thermistor
Shorted
F:25 flashes if the inlet thermistor is
shorted. This fault code appears ONLY
when in the Diagnostic Test Mode.
■
See TEST #4a, page 7.
F
:
26
Motor Drive
System Failure
F:26 flashes if there is a motor drive
system failure.
■
See TEST #3, page 5.
F
:
28
Moisture
Sensor Open
F:28 flashes if the moisture sensor strip is
open. This fault code appears ONLY when
in the Diagnostic Test Mode.
■
See TEST #5, page 8.
F
:
29
Moisture
Sensor
Shorted
F:29 flashes if the moisture sensor strip
has shorted. This fault code appears ONLY
when in the Diagnostic Test Mode.
■
See TEST #5, page 8.
Moisture Sensor
Strips
Heater
Assembly
Door
Switch
See Accessing & Removing the Electronic
Assemblies, page 9, to access:
See Removing the Back
Panel, page 11, to access:
See Removing
the Toe Panel,
page 9, to access:
■
■
Machine Control Electronics
Console Electronics and Housing
■
■
Drum Light Assembly
Blower Motor Assembly
■
■
■
■
■
■
■
Moisture Sensors
Outlet Thermistor
Thermal Cut-off
Inlet Thermistor/High Limit
Thermostat Assembly (Electric Models)
High Limit Thermostat (Gas Models)
Heater Assembly (Electric or Gas)
Thermal Fuse
Figure 2. Component locations.
Display Description Explanation / Recommended Procedure
F
:
30
Restricted
Air Flow
Condition
F:30 flashes if a restricted air flow condition exists. This fault
code appears ONLY when in the Diagnostic Test Mode.
■
Check to make sure the lint screen is clean, the door seal is
in place and the vent is not obstructed.
■
See DIAGNOSTIC: Displaying Inlet Air Flow, page 2.
F
:
31
L2
Line Voltage
Error
F:31 flashes if a low voltage condition (less than 30 V) has
been detected. This fault code appears ONLY when in the
Diagnostic Test Mode.
■
Check to see if a household fuse has blown or a circuit
breaker has tripped.
■
Confirm the power cord is properly installed and plugged
into the power outlet.
■
Check the relay connections on the electronic control.
F
:
70
F
:
71
No
Communication
Between
Electronic
Assemblies
F:70 / F:71 flashes when there is no communication between
the machine control and the console electronics.
■
Check console electronics harness connections to the
machine control.
■
Replace the machine control electronics. See Accessing &
Removing the Electronic Assemblies, page 9.
F
:
72
through
F
:
78
Console
Electronics
Failure
F:72 through F:78 flashes when there is a console electronics
failure.
■
Replace the console electronics. See Accessing &
Removing the Electronic Assemblies, page 9.