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D/W detergent door doesnt open during operation.

\015 I'm working on a Roper dishwasher. I'm not sure of the model #, but the problem is that the detergent door doesn't open during operation. Hence the dishes aren't getting clean and the detergent is wasted. I verified that the latch release mechanism is connected properly and that the springs are connected and providing tension. Could it be a timer issue? Thanks\015

Answers :

Most common issue is the bottom rack in backwards, or something else actually not allowing the door to open, physically.
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