Troubleshooting guide
23
TheoryofOperation-Fill/DrainTimer
Fill/DrainTimer-TheoryofOperation
Fill
1. Main power, (115VAC), must be present at the Hotline and Neutral terminals of the ll/drain timer.
2. Turning the machine ON/OFF switch ON, sends 115VAC to the "SW Power" terminals which
activates the initial ll.
3. The rinse valve is activated for 70-seconds.
4. The drain pump also operates for the same amount of time. This prevents any overow conditions
if the wash tank had not been drained previously.
5. If the door is opened during the ll cycle, then all functions are suspended and will continue from
where they left off once the door is closed.
6. To prevent false lls due to brief power interruptions, the following safety measures are built into the
operation of the Fill/Drain Timer:
a. Power must be present at the Hotline and Neutral terminals for 5-seconds
before the signal from turning the machine ON/OFF switch ON is accepted.
b. A ll will not happen unless the machine ON/OFF switch is OFF for 5-seconds
before being switched ON without interruption.
The Fill/Frain Timer provides both automatic ll and semi-automatic drain functions for the
dishwasher. It is located on the back of the electrical component panel and it operates as follows:
Fill/Drain Timer
(shown enlarged)
Fill
Drain
Neutral
Hotline
SwPower
Door SW