Fill System & Rinse System
The dishwasher fill and rinse systems is practically the same system as they both used the same circuit. The only difference is what is sending the signal to the water solenoid valve.
During the fill cycle, the water solenoid gets its signal from the pressostat. When the pressostat is satisfied, it cuts the signal to the solenoid valve and sends power to the thermostats and the timer.
During the Rinse cycle, the water solenoid valve is getting its signal from the timer. When the time has completed the rinse cycle than the solenoid is
Because the detergent pump and the drain pump (if so equipped) are connected in parallel with the water solenoid valve, they will all work at the same time. Why are they connected this way? Simple, the detergent pump is connected this to inject detergent whenever new water comes into the dishwasher. The detergent does not mix with the rinse system so it does not contaminate the rinsing process with detergent.
The drain pump will work whenever the water solenoid opens and this is to avoid overflow problem should the pressostat becomes defective and the unit get stuck in a fill cycle. Here it si important to keep in mind that this scenario will only work if the dynamic (flow) water pressure does not
exceed 25 PSI and the unit is capable of totally draining within 1 minute. If any of those two factors exceeds the limits then you can have an overflow situation.
The water solenoid valve will send water through the booster first and then water will travel to the
continuous work.
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