If it was the motor itself causing the noise then it would do it all the time, even during pump out.
The inlet valve only operates when the unit is filling with water. So that rules that out.
What I would like you to do is listen for the sound during the pumpout phase before the rinse cycle and let me know if it also stops during that pumpout.
Please let me know whether it does or does not make the noise.
Awaiting your reply; THS
about how old is this washer?
If the unit has been quiet up until this time I think what has happened is one of the isolation bushings has worn out, and the motor is hitting something that acts like a sound transmission pathway. In other words what you are hearing is the motor against the chassis.
What really confirmed my thought is that the unit doesnt make the sound, or at least not as badly when it is in the drain mode. The motor is reversed during this stage which pulls it back onto the rubber bushing partially, and the noise is abated by the bushing.
You probably think that that cant make that much noise. But these dishwashers are notorious for being either real loud or real quiet. The bushings make all the diffrence in the world.
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