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7.1.2 User Warning U4 - Other Tub Faulting
1. The other tub has a fault which is preventing the operation of that tub. No action is required for the
tub displaying the U4 code.
DO NOT REPLACE COMPONENTS ON A TUB WITH THIS WARNING.
7.1.3 User Warning U6 - Spray Arm Not Detected
1. Check to ensure that the spray arm is correctly located on the motor rotor and that the motor rotor
is correctly installed in the motor housing.
2. Using “Hardware Output Mode” run the ll valve (P30 & 31). If water enters the tub then the water
supply is connected, however the water pressure may still be too low for correct operation. Min
pressure .03MPa (4.3psi), water softener model 0.1MPa (14.5psi).
3. If the water pressure and ow rate is inadequate, try tting a 4 litre valve ( part #529828) which may
help increase the ow to the product. In cases where water pressure is too low, the DishDrawer may
need to be run at a separate time to other applainces which use water, such as washing machines.
4. To exit “HO” mode, press POWER button at any time.
7.1.4 Fault Code E1 - Flood Detected
There are two types of E1 faults, wet E1 that is usually due to a leak, or dry E1 which can be due to a
component failure or wiring related fault.
Wet E1- Water in the Chassis Base
1. Check the tubs to ensure there is nothing obstructing the lid like large cooking utensils or large
cups and glasses placed on top cup racks which extend above the tub ange.
2. Make sure the lid systems are free from other obstructions and yokes are connected, enter
“Hardware Output Mode” (p30 & 31) and check operation of the lid motors on both tubs. If either of
the actuators fails to operate, or are slow to operate replace the actuator. ( see p68 on procedure)
3. Check the ll level on both tubs, is the valve turning o and disconnecting the water supply, and
is the tub lling to the correct level? approx 2.5litres (0.8 US gallons). The ll valve operation can
be checked in “Hardware Output Mode” but run in diagnostics means the water valve will not shut
o, this is done manually (refer p30 & 31), when run and switched o, does any water still leak into
the wash tub? if water is still running through the dispenser when shut o then the valve diaphram
maybe leaking and valve will need replaced.
4. Check for any foam inside the tubs, if present try to determine the cause, i.e customer spilt rinse
aid when lling, wrong detergent used. Try and remove as much foam as possible, this can also
be done by ushing the tub, to ush the tub enter “Hardware Output Mode”, select drain pump
component P2 (p30 & 31) , while the drain pump is operating, manually pour warm water into the
tub until the foam is removed. To exit the hardware output mode, press POWER button at any time.
5. Check the motor rotor that the wash impellor is intact, and that the motor rotor turns freely.
6. Check the hall eect sensor (RPS) on the motor stator, ensure this is this clipped in correctly.
7. Look for other sources of leaks, possible other leaks can be the following: lid seal, heater plate
seal, wash pump seal, internal ll hose, leaking water valve body, drain hose, drain hose cu, water
softener (if tted)
8. Remove excess water from chassis base and ensure the ood sensor is dry.
Dry E1 - No Water in the Chassis Base
1. Check for corrosion around the ood sensor and ensure that the ood sensor is correctly placed and
not touching the chassis.
2. Check the chassis harness connections for corrosion.
3. Replace the mains lter board.
4. If the fault continues, replace the controller.