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599464
21
Fault
Code
LED
Display
Fault Possible Causes
U1 Heavy and
Rinse LED.
Machine has
failed to prime
with water
within approx.
3 minutes.
• The water supply is not turned
on.
• Low water pressure.
• Blocked water softener if fitted.
• The inlet valve has failed.
• The machine is siphoning.
• The spray arm is not in place,
or the flapper is jammed.
• Excessive foaming - using
tablets (not EU/GB), liquid
detergent or spilled rinse aid.
• The motor has failed.
• Rotor not fitted correctly or
faulty.
• The electronic controller has
failed.
U2
Heavy and
Dry LEDs.
Restricted lid
travel, the lid
has reached
stall current
too soon.
• Dishes or cups / glasses
prevent the lid from closing.
• Lid, lid actuators or yokes
jammed.
U3
Not
displayed to
customer.
Water filled too
quickly, or tub
failed to drain.
• Not draining completely from
previous fill.
• Excess water pressure.
• Faulty fill valve.
U4
Heavy and
Fast LEDs.
Advisory only
– the other tub
has a fault and
has disabled
the power
supply.
• Diagnose and repair the fault
in the other tub.