Service Test Cycle Chart - Whirlpool WFW3090GW Service Manual

NOTE: Perform Service Test Cycle without laundry in the washer.
Step Icon
C00
C01
C02
C03
C04
C05
NOTE:
The total duration of the Service Test Cycle is approximately 5 minutes. During the Service Test Cycle, all UI LEDs will be on
except for the "door open/door unlocked" LED. The display will show the test step sequence.
Do not skip test steps. Washer must be connected to water supply when performing Service Test Cycle.
The following indicates the basic meaning of each "F##" fault/error code. See the chart beginning on page 3-6 for more details.
F01 = Water flow
F03 = Drain pump
F04 = Heater timeout
F05 = Temperature sensor
F06 = Motor rotor
F07 = Motor control (internal failure)
F10 = Motor control (over temp.)
F13 = ACU door lock
F18 = Suds detected
For Service Technician Use Only

SERVICE TEST CYCLE CHART

Description
Door is locked. ACU is performing the self
test.
Prewash valve fills for 6 seconds.
Main wash valve fills for 6 seconds.
Prewash and main wash valves both fill for
16 seconds.
Prewash and main wash valves both fill to
wash level.
Motor turns on.
Heating element turns on for 15 seconds.
Motor is off. Display shows a measured
temperature, e.g., 20C = 20°C (68°F)
Drain pump turns on until reaches wash level
+ 8 seconds.
Motor reverses
Unbalance and load size is measured. Display
shows amount of measured unbalance in
kg (example: "0:03" = 0.03 kg [30 grams] of
unbalance).
Motor revs to maximum speed.
Drain pump turns on.
Motor turns off (brakes).
Door is unlocked.
Washer turns off.
F20 = Main relay or heater relay
F21 = UI communication
F24 = Overflow
F26 = Drain pump
F27 = Motor
F29 = Door lock
F34 = Motor spin
F36 = Analog pressure sensor
F60 = ACU internal failures
DIAGNOSTICS & TROUBLESHOOTING
Checks performed
ACU detects F05, F07, F13, F20, F21, F24, F26,
F27, F29, F60.
Verifies activation of valves, dispenser, and
pressure sensor.
ACU detects F01, F06, F07, F10.
Verifies activation of heating element, correct
measurement of cold water temperature.
NOTE: Heating time is very short; no
noticeable actual temperature increase.
Verifies activation of drain pump and reversal
of motor.
ACU detects F03, F06, F07, F15, F26, F27.
Verifies that motor is running at maximum
speed.
Verifies the displayed unbalance.
Verifies activation of drain pump.
ACU detects F06, F07, F28, F34.
Verifies unlocking of door and turning off of
washer.
ACU detects F13, F29 (FdL).
Whirlpool Compact Front Load Washer 2-5
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