16
Service Tests
The control has a number of tests that have been
programmed into its memory most of these are for
manufacturing purposes and are not useful for field
service. At times, if certain pad combinations are
pressed, different codes may appear in the display
that are unknown or not listed, what needs to be
done is disconnect power to the unit then reconnect.
You can then continue with servicing the dishwasher.
The control has service tests programmed into it that
can be of assistance to the service technician in
diagnosing control and component problems with this
unit. These tests are; The Water /Service Test,
Water Temperature Test Mode, and The Relay/Triac
and Sensor Test.
Water/Service Test
In the Water/Service Test, the control will step
through each function of the product and operate
each component before ending and illuminating the
CLEAN and SANITIZE LED’s. Along with checking
the operating components the control will check all of
the input sensors as the test progresses, if at any
time a failure in one of these sensors is detected, the
test will stop and a failure code will be displayed.
To Start the Test
From an idle condition, this is with no programs
entered into the control, press pad # 10 and the
START/CANCEL simultaneously for three seconds.
You will know that the test has started by the water
valve being activated and the Washing and Sensing
LED lighting. The test will automatically advance
through the complete test unless the control detects
a failure in one of the sensors. The test may be
manually advanced by pressing the START/CANCEL
pad. Each time the pad is pressed the cycle is
advanced one segment.
To Exit the Water serviceTest
At the end of the test the control lights the CLEAN
and SANITIZE LED’s. With these indicators light,
opening then closing the door will give a PF code in
the display, the START/CANCEL pad can now be
pressed to clear the test and restart the dishwasher.
To insure the correct pad is pressed to enter and use
these tests the pad locations will be numbered 1
through 11 with pad # 1 being the pad furthest to the
left an pad # 11 the furthest to the right. In all cases
the pad to the right will always be the Start/Cancel
pad.
Water Temperature Test
This test will allow the service technician to check the
temperature of the water in the sump of the dish-
washer while at idle or while it is in operation. The
temperature of the water will show in the display
using the last two numbers in the degrees. On
temperature over two numbers the display will read
the last two numbers in the temperature and a plus
(+) sign, an example of this is the water in the sump
is 120° will read 20+ in the display.
To active the Water temperature test
With the dishwasher in idle press and hold the
Normal wash and the Start/Cancel pads simulta-
neously for 3 seconds the temperature will be shown
in the display. To terminate this test press and hold
the Normal wash and the Start/Cancel pads again for
3 seconds.
With the dishwasher in operation, press the cycle
selection pad of the cycle that is in operation and
hold in for 3 seconds the temperature will be dis-
played. The temperature will stay in the display and
update every 3 seconds. To terminate this test press
and hold the same cycle selection pad used to start
the test.
