Faults and Error Codes
Faults marked with "‡" will stop the cycle execution. If no action is taken within 5–10 minutes, the display will turn off.
All faults can be viewed in the 'Fault History' section of Service Mode.
Code
Description
Lid Switch Fault - Lid Is
F5E1
Open
‡
Lid Lock Will Not Unlock
F5E3
Lid Lock Will Not Lock
Lid Not Opened Between
F5E4
Cycles
‡
Communication Error: HMI
F6E1
Cannot Hear ACU
‡
Communication Error: ACU
F6E3
Cannot Hear MCU
‡
Tachometer missing or
F7E1
Wrong Signal
‡
F7E2
MCI drive failure
Basket Engaged During
F7E3
Wash
Basket Re-engagement
F7E4
Failure
F7E6
Motor Circuit Open
Motor unable to reach target
F7E7
RPM
DO NOT REMOVE OR DESTROY
FOR SERVICE TECHNICIAN'S USE ONLY
Fault is displayed if lid is in locked state, but lid switch is open; control not sensing the strike in the lid lock.
dz User presses START with lid open.
dz The main control cannot detect the lid switch opening and closing properly.
dz See
TEST #8: Lid
Lock.
Fault is displayed when one of the following conditions occurs:
dz Excessive force on lid is preventing lock bolt from retracting.
‡
dz Wash media buildup is preventing lock bolt from retracting.
dz Main control cannot determine if lid lock is in an unlocked state.
dz See
TEST #8: Lid
Lock.
Fault is displayed when one of the following conditions occurs:
‡
dz Check lid lock for obstructions.
dz See
TEST #8: Lid
Lock.
Fault is displayed when one of the following conditions occurs:
dz User presses START with lid open.
dz User presses START after a predetermined number of consecutive washer cycles without opening lid.
dz The main control cannot detect the lid switch opening and closing properly.
dz See
TEST #8: Lid
Lock.
Fault is displayed when communication between the HMI and the ACU has not been detected.
dz Check continuity in the HMI harness.
dz Complete
TEST #1: Main Control (ACU)
Fault is displayed when communication between the ACU and the MCU has not been detected.
dz Complete
TEST #1: Main Control (ACU)
Fault is stored when the ACU cannot read the speed or power from the tachometer.
dz Check connections to the ACU.
dz Complete
TEST #1: Main Control
dz Complete Sensor Feedback Motor Speed Tachometer test.
Fault is stored
when there is a failure within the motor or ACU hardware.
dz Complete
TEST #1: Main Control (ACU)
Fault is stored when the main control determines the shifter is not engaging the basket for spin or disengaging
it for wash.
dz Check shifter connectors.
dz Check for clothing or another item wedged between the impeller and the basket that could bind them together.
dz Check that the shifter slider moves freely.
dz See
TEST #3a: Drive System –
Fault is stored when main control detects one or more of the motor lines is open.
dz Check motor circuit.
dz See
TEST #1: Main Control (ACU), TEST #3: Drive System
Fault is stored when motor cannot reach the target RPM.
dz Check basket for obstructions
dz See
TEST #1: Main Control (ACU)
Explanation and Recommended Procedure
and
TEST: #4
HMI.
(ACU).
and
Test #3b: Drive System -
Shifter.
or
and
TEST #3b: Drive System – Motor
Motor.
TEST #3b: Drive System –
Motor.
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