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4 TECHNICAL
OVERVIEW
This Service Manual contains information on the Product Specifications, Diagnostic Mode, Detailed
Fault Codes and the complete disassembly and assembly instructions for the AquaSmart
™
washing machines.
4.1 Electronics
4.1.1
Motor Control Module
The Motor Control Module used on the
AquaSmart
™
washer is similar to the other
washers in its physical size and shape, however
the electronics have different software to control
the unique aspects of this machine.
Therefore the Motor Control Module is specific
to this machine and is not interchangeable with
any other machines.
The text on the yellow identifier label (P7SPL)
stands for Phase 7, SmartPump™, Low profile
Agitator.
4.2
Stand By Mode
If the machine has not received any instructions for 10 minutes after being switched on at the
power point, or after completing the cycle, it will automatically go into a low power “Stand By”
mode. The control panel will be blank as if it was powered off at the wall.
Before entering the Diagnostic or Option Adjustment mode, the machine must be taken out of the
Stand-By mode. To do this, the
POWER
button will have to be pressed, or the machine turned off
and back on at the power point.
4.3 Out of Balance Detection – ‘Bump Detect’
Past electronic machines have used a lever connected to a mechanical switch to detect if the load
in the inner bowl is out of balance. On this series of machine the system has been replaced with
electronic sensing known as ‘Bump Detect’. ‘Bump Detect’ is software written into the Motor
Control Module, which looks at specific feedback from the Rotor Position Sensor.
No fault codes are associated with ‘Bump Detect’, and there are no hard and fast tests that can be
carried out.
If a machine continually goes into an out of balance condition, then the following need to be
checked in the order given.
1. Even distribution of the clothes load.
2. Ensure that the machine is both level and stable on the floor.
3. Ensure that the feet have the rubber inserts fitted and the cabinet corners are clear of the
floor.
3. Check that any of the straps on the neck ring are not broken and that they are fitted
correctly.
4. Check the weight of the inner bowl. Bowl weight is as follows.
•
24lb 3oz +/- 10oz (10.965kg +/- 275g).
5. Check the RPS using a RPS Tester.