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Introduction
Introduction
The “A” electronic control is composed of the
electronic control unit and the output board with
wiring harness. Only an authorized person should
service components inside the machine. TURN OFF
POWER, open lid and remove any cover present.
Electronic Control Unit
This portion of the control contains the “intelligence” –
the micro-controller and the miscellaneous components
on the printed circuit (PC) board. The board has a
metal cover, which MUST be in place at all times
during machine operation. Operation of the machine
without this cover installed will void the warranty.
The control unit monitors and responds to input, gives
information about the status of the washer and
monitors and responds to inputs from the user
interface (keypad). The control provides signals to the
control output unit, which in turn operates the
components that control the machine functions. This is
located behind the machine control panel.
Control Output Fuse Board
This portion of the control contains the power supply
for the control unit, and also the switching devices
which power the components in the machine, all of
which are on the output PC board. The switching
devices are controlled by the control unit, and are solid
state.
Harnessing
Wiring harnesses are modular – harnesses common to
various configurations are similar, while those specific
to a certain configuration can be added. There are
harnesses for inputs to the control unit, for outputs
from the control power/output unit to the machine
components, and for the main incoming power to the
control power/output unit.
Delivery Inspection
Upon delivery, visually inspect crate, protective cover,
and unit for any visible shipping damage. If the crate,
protective cover, or unit is damaged or signs of
possible damage are evident, have the carrier note the
condition on the shipping papers before the shipping
receipt is signed, or advise the carrier of the condition
as soon as it is discovered.
Remove the crate and protective cover as soon after
delivery as possible. If any damage is discovered upon
removal of the crate and/or protective cover, advise the
carrier and file a written claim immediately.
