Fisher & Paykel DishDrawer DD605 Service Manual page 39

U3 Filled Too Quickly Or Failed To Drain
This fault is not displayed to the customer, but it is recorded in the fault history and can be seen by Smart Tool.
If the motor senses prime too soon (in less than 20 seconds), it will drain and refill up to 5 times, then continue the
wash program regardless, and log the fault.
PRIMARY ACTION
Not draining completely from previous fill, test in diagnostics.
Check for:
- A blocked drain or kinked drain hoses.
- Blocked drain sump inlet / outlet pipes.
- Blocked drain filter.
- Faulty rotor.
- Faulty connection to the motor.
- Faulty hall sensor.
SECONDARY ACTION
Filling too quickly. Check for:
- Excess water pressure.
- Faulty water inlet valve.
U4 This Fault is Advisory Only. The Other Tub has a Fault and has Disabled the Power
Supply.
This fault is advisory only. The other tub has disabled the power supply.
PRIMARY ACTION
- Diagnose and repair the fault displayed on the other tub.
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599447A