Mark- Searching around the internet, I found a number of people having the same issue with the new black exhaust screen on their new SQ dryers. I’ll ask my dealer if the unpainted—I mistakenly said the ones previously used were white—metal screens are still available and to switch it for the black one.
Eddie- I did hear from John via message. While he didn’t have an explanation for the color transfer onto items being dried, he did say that the previous exhaust screens—which were unpainted—turned gradually turned black not from heat, but from residue from poorly-rinsed clothes and/or when fabric softeners were used.
I washed two small but heavy bathroom rugs last night. Only the rug that isn’t rubber-backed goes in the dryer, so as an experiment, I used the highest heat setting and set the timer for 99 minutes. Around the 25-minute mark I grabbed a dry wash cloth and rubbed it against the hot metal exhaust screen. Nothing rubbed off on it. Dawns on me now, the only permutation I haven’t tried is rubbing a wet cloth against the hot screen. Will try that today. Otherwise, I’m completely stumped. This is why I think the best thing to do is just replace the new black-painted screen with the old-style unpainted one. Problem solved.
Aside: The only hesitation I had about getting the SQ washer was reading comments about out-of-balance issues on half-size loads, of which I wash a lot. Even on a pedestal, the machine has had no problem balancing small-to-medium sized loads. Washing the two small, very heavy rugs was a test of sorts, but the machine handled that tough-to-balance load without a problem. The true test will come when I wash sheets, pillowcases, pillow covers (the zip-up kind) and the mattress pad together. That was the only load that ever caused an occasional cabinet-banging out-of-balance load in my 2017 SQ 9-Series top-loader.
I’d like to express a heartfelt thanks to everyone for your congratulations, comments and suggestions. AW is such a supportive community and the best resource for all things laundry and laundry equipment-related one could ask for.