I HAD THAT SAME SET.
It's a really nice washer too, and IRRC it was actually made in GERMANY, the land of AMAZING washers.
When I first bought it, inside the tub, was a Coupon for a Free Tide Liquid Bottle, plus a Sample Packet of Tide (Liquid) detergent. Anyhow, I went along, I used Liquid tide for about 3 months or so, and even though I was leaving the Door open, washing in WARM (for most clothing), Hot (for Whites & Linens), I still had the nasty smell.
Anyhow, I followed the suggestions of everyone else online. Bought Vinger, and it helped null the smell (but it would come right back, a week or so later).. Finally after doing a clean wash cycle and switching Tide Powder did my Duets drum not only look CLEANER, more Sparkly
but, it was Odor Free..
From what I've gathered, Liquid Detergents are okay, for some cycles, but repeated uses of them, seem to leave water mineral build up on Drums, along with residual amounts of surfactants that never dissolve.
(I think the biggest problem is, the design of the Washers, pouring detergent into the Drawer, the detergent running down (before water get's to activate), and the fact that LG & Whirlpool, use a Cold Fill for a Gallon or so, during the sensing stage of load, before it even starts filling with the Water you specified for your Laundry. The Detergent, can collect on the otter parts of the Drum, and most detergents (nowadays) seem to be more stickyish (thicker, more concentrated), less watered down, allowing the reside to gather easily.
Anyhow, to the OP. Go to your Local Wal*Mart, and Purchase Two, One Gallon Bottles of White Distilled Vinger, 5%. Then, Run Two Cups, on the Whitest Whites Cycle, with HOT WATER, AND the "Soil Level" button, pressed to the Max, along with Extra Rinse and Spin Speed High.
One Wash should clear out a good bit of the smell, but if not, repeat over & over, until gone. Repeat at least once a month, if not every two weeks.
