A small blower (as you probably know) runs during the dry period to pull room air through the DD and exhaust the residual heat/moisture. The vent is at front/center beneath the DD. Depending on where/how your storage drawer is positioned in relation to your DD's exhaust, you're probably having some warm/humid air seep into the drawer. Leaving the storage drawer ajar as you've been doing allows it to dissipate better. Doubtful there's anything wrong with your DD. Probably the only workaround is to cancel the DD cycle when the drying phase starts and pull it fully open for flash-drying instead of the normal airflow drying. Note that if you do that, the DD's pump will likely run in drain mode for a minute or so when the DD is next closed.

Thanks, dadoes. It's good to hear that it doesn't sound like anything is wrong with the DD because other than that slight problem it's a great dishwasher. Everything comes out absolutely sparkling and dry and it's super quiet. Thanks, again.

I have experienced the same problem but really want it fixed. The first DD I had warped the cabinetry below and now I have a new DD the problem is happening.

@Nay Kay, there's nothing broken on the unit to be repaired. Moisture must exhaust during the drying process. Your installation / positioning of the unit would have to be changed in some way to direct the airflow where you want it to go, if that's possible.

Thanks. Both a Fisher Paykel technician and cabinet installer seem to think there is nothing wrong with the installation so I think there is an overall design flaw with the unit. I had a half draw FP DD without the integrated panel for 15 years with no issue. It’s a shame as overall the DD performs beautifully except for this one issue.

No issue with the previous machine? You say above that the first single-drawer unit that you had for 15 years warped your cabinetry? Your new unit is a double-drawer? There is a method now to vent single-drawer units via a hose that exits at the toe kick (floor level) of the cabinetry below the unit or the adjacent cabinetry (sink), unless that has recently changed. It isn't doable on double-drawer units.

I am installing 2 of these drawers and am concerned the venting that will be coming out of the toe kick will damage the hardwood floors. Has anyone had any issues if yours is installed this way?

As previously commented above I experienced this issue with several different DD units. I finally discovered the issue being a kink in the water hose which meant that water was sitting in the hose blocking proper ventilation. The fix is to make sure the hose is kink free as well as angled so no water can ‘sit’ in the hose. Once I had anchored the hose internally to allow free flow, the problem went away.
There is nothing in the install instructions regarding fixing the hose to allow flow, nor could 3 FP technicians identify the problem. My builder was the one to figure out the issue.

"Nay Kay: I finally discovered the issue being a kink in the water hose which meant that water was sitting in the hose blocking proper ventilation."

To which "water hose" are you referring? The drain hose?

This is how mine works. There are vent ports at back of the tub and at front (where the silverware basket sits). The drying fan is at the front port. It pulls air in through vent at the back and blows it down under the exterior front panel. There is no ventillation through the drain hose.

Has the design been revised? Does your DishDrawer not have vent ports in the tub?