u/poetglass

We bought a house and it came with a new frigidaire (model number ffcd2413us) dishwasher. We washed a load of dishes, and everything was fine.

As the days went on I placed a dishes into the dishwasher until I was ready to start the load. 2 days later there was mold on the dishes.

I did a washer with vinegar a 2 weeks ago and this is what I see in the bottom.

Is this mold?

What can I do to fix this?

The builder stated that this is a warranty issue not the builder issue.