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18 Inch Stainless Steel Tub Dishwasher
The stainless steel tub 18 inch under counter and portable
dishwasher offers a completely new wash system, door
hinge and spring assembly, with the addition of a separate
drain pump, and an all new water overflow system. This
manual will describe how to service, diagnose, and repair
or replace components on this unit.
Timer
An electrical mechanical timer controls all operations and
functions on this unit. The user can select a number of
different cycles depending on the needs of the load to
be cleaned. This model also has the flexibility to offer a
rinse only and a plate warmer setting along with up to a
three hour delay wash setting. The timer controls all of the
electrical operation of the dishwasher for any of the cycles
selected. The sequence of the different cycles can be
found in the cycle chart supplied with the product and a
copy also found in this manual.
To assist in determining problems with the timer, or
timer operation, the use of the product wiring diagram
and the cycle sequence chart will help in determining
when contacts open or close for the different electrical
components.
Testing the timer
1.
Check power to the product at the junction box,
then at the door switches mounted on the door
latch assembly.
2.
Set the timer to the Heavy Wash setting. Check for
power from both door switches to the timer to make
sure the timer disconnect block is locked in to the
timer properly.
3.
All of the following checks should be done with the
power disconnected and using an ohm meter for
safety.
4.
Use the wiring diagram and the sequence chart
to check for proper opening and closing of the
different contacts in the timer.
5.
After all needed checks have been completed,
power can again be applied and the operation of
the timer motor can be checked. The timer motor
will start after the knob is moved from the off
setting.
6.
It is best to advance the timer with the door open.
This will reduce burning of the timer contacts.
7.
Return the timer to the Heavy Wash setting, close
the door and allow the timer to advance. Referring
to the sequence chart will tell the length of time
between advancements of the timer.
If a timer contact fails to open or close as shown in the
sequence chart, or a burnt contact is found, the timer will
need to be replaced.
If the timer does not advance automatically according to
the sequence chart, the timer will need to be replaced.
Selector Switch
The selector switch allows the user to change a cycle by
adding or subtracting options as they so desire. There is
an option for a high temperature wash and /or a no heat
dry.
When the high temperature wash cycle is selected, the
timer advances the cycle up to the main wash section of
the wash cycle, then near the end of this section, or when
the indicator on the timer knob is straight down and again
just before the plate warmer location, the timer will pause,
but the wash motor will continue to spray water.
During this pause the heater will increase the wash water
temperature until a control thermostat located on the
under side of the tub closes. This restarts the timer motor
and the cycle continues. The length of time for this option
can vary depending on incoming water temperature and
the make up of the dish load.
The no heat dry option disconnects power to the heater
once the timer reaches the dry section of a wash cycle.
This option only removes power to the heater in the dry
cycle and does not affect any other heater operations.
The selector switch is a multi function push button type
switch. When a pad is pressed a red plastic flag will
appear in the window above the pad to show it has been
pressed. This flag is not a light but will show as red. The
selection of these options can be made at any time up to
the point in the cycle they will affect the operation of the
cycle.
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