93
25 deg. Close the soap door and retest. Replace the dispenser if faulty.
If the user complains of water spotting and drying difculties, the unit may not be dispensing the
rinse aid. Check the rinse aid level to ensure an adequate supply. If rinse aid is present, the link-
age bar may not be cycling into the proper position. Separate the door and inspect the solenoid and
linkage for proper operation.
Door Latch
The door latch is located in the door and houses a switch that tells the controller if the door is open
or closed. When the door is closed, the switch closes. When the door opens the switch opens,
which is sensed by the controller. If operating, the unit will halt when the door is opened (switch
open) until the door is closed again.
If the door latch is defective the unit may turn on but a wash cycle will not begin since the control-
ler checks to see if the door latch circuit closes prior to starting. In this case, the door may close
and physically latch but the dishwasher will not begin washing. The digital timer will not count-
down but the green LED will blink as if running.
A small microswitch in the door latch assembly closes when the door closes. This closes pins 1 and
4 at P2 on the Power Board.
To test the latch without removal:
1.
Disconnect the wire connector from P2 on the Power Board.
2. Touch a DMM set in continuity mode to pins 1 and 4 on the connector.
3. Open and close the dishwasher door. The continuity alarm should sound when the
door is closed, (closing the switch and circuit.) If it does not, trace the wiring
back to the door latch looking for the fault.
Check the striker, located on the tank, for proper position. If the striker does not extend out far
enough, adjust to allow the latch assembly in the door to fully rotate into the closed position. Test
by forcefully pushing on the door and listening for the continuity alarm.
Drain Pump
The drain pump is a small 120VAC pump located in the front of the base area. This pump is used
to drain the tank of the wash and rinse water. The drain pump is powered by the control board and
power board as necessary. See Wash Cycle Data Chart , for proper timing of drain pump usage.
When energized 120VAC is supplied to pin 2 on terminal P7 on the power board, the drain pump
will operate and deliver waste water to the appropriate drain location. Depending on the particular
installation it could be routed through the garbage disposal, or directly to a waste pipe. The “high
loop” in the supplied drain line must be utilized for proper drain operation. If the unit is drained into
the garbage disposer then a sink air gap should be utilized. The rate at which the tank empties de-
pends upon various installation conditions. See graph for ow rates. See chart for solutions to pump
problems.