I think it's best to call Miele. There are two sensors in the dryer: 1) one on the three long paddles inside the drum to read fabric moisture and, 2) one inside the exhaust plenum to monitor heat and to shutdown the unit if the exhaust gets too hot, thereby notifying you with the panel light. Either the exhaust sensor is bad, or there is something obstructing the exhaust in the machine itself. Someone earlier mentioned that they found a part, located within their 9800's exhaust, out-of-skew when they checked their unit. However, I would not mess with it, and while the Miele Tech rep is there (insist that a factory Miele tech rep. comes as they have the software, and hardware to properly work on your units) ask them to also upgrade the firmware on both your washer and dryer, if needed.

If you pull the service manuals for the Octoplus machines they are different. The outside basic shell is the same, but what went inside was different. The professional machines have full stainless inner and outer drums. Stainless vs Aluminum spider. The shocks are much beefier. The drum is horizonal and not inclined. There is no captive rubber boot for the door. The last one is why Miele won't sell the octoplus to residential customers. It is possible to get little fingers caught between the door and frame. The upside is that without a boot there are lot fewer problems with water being retained in a boot and you get a better seal. They are setup for external chemical dispensing. Designed to last 30k instead of 10k hours. Etc. Etc. Miele made too many compromises with the 27" residential units. It backfired on them. Now they only offer their worldwide residential 24" and professional 24" and up sizes. There was never a gas version of the octoplus dryer that I was aware of. It was electric only. The electric versions of the T98xx dryer had fewer problems. Most of which were related to the machine being overloaded. The octoplus is rated to hold a full drum worth of clothes. The residential models were not. It was very easy to put 1.5 to two times the amount of clothes in the residential drum vs what they were rated to hold. For marketing and customer education that is really up to the reseller. Some dealers are really good and others just sell you the appliance and you are on your own. Miele's manuals are fantastic. Much better than almost every other manufacturer. Many people do not read the manual cover to cover so they are unaware of all of the available options and any required ongoing maintenance. We are a family of 13 people now and we have ONE set of W1/T1 laundry. We do ALL of our laundry in them. From towels to dress shirts, wool pants and sweaters, sanitize when needed. Never had one problem with them. I did replace the foam filter on the dryer which is in front of the condenser after 3000 hours as it was starting to wear out. (This was mentioned in the manual) I think looking at the size of the new washer/dryer gives a lot of people pause. It is NOT an issue if you are accustomed to doing laundry every day. With the size of our family it is 4-6 loads per day. We can put 12-14 Costco size bath towels in one load for perspective. You can fill the drum all the way up as long as you don't pack it tight and lean on the door to get it closed everything will come out clean. It's too bad you didn't have better luck with your current appliances. I can see how that would taint your view of Miele.

Got the washer. It's great. Clothes get cleaner, dry faster, and it's so quiet you can barely tell it's running. (I do wish that the end-of-cycle signal was louder - I'd like to be able to hear THAT upstairs.) With the pedestal, it's a great height, and the pedestal even works well for storage. Also, the 120V hasn't been a problem at ALL. This machine uses so little water (yet still washes great) that it can still heat up the water QUICK even with the smaller heater. Even on the most aggressive cycle (Sanitize + Extra Soil + Extended + Sensitive) it's still much gentler on clothes than my old TL on Delicates. The controls are just simplified enough that they don't confuse anyone else in my house, and aren't missing anything significant to me. I'm still considering a new dryer. Will need either a left-opening or hamper-style door. Also, I want a real moisture sensor (instead of the simple temp-based system my old dryer has). A drum light, reversing tumble, and a real countdown timer (with good estimating logic based on moisture) would be nice too. Unfortunately the T9800 doesn't have the timer. Right now, I'm using Persil Sensitive, 1/4 to 1/2 cup in the main wash and under 1/4 cup in the prewash. Also 1/2 cup DWV in the fabric softener compartment (for cat odor). I've tried using LCB a couple of times - 1/2 cup on the Sanitize cycle for whites REALLY blasts the stains out. And there's no residual odor like there was when using LCB in my old TL.

Back in February before I purchased my new w/d I was considering Bosch as I had a pair in our apartment and I liked it a lot. But for our house I needed a vented dryer and the appliance sales person told me the Bosch vented dryers were being discontinued. So I went with the Miele pair and while was very expensive it has completely exceeded my expectations. IMHO it's the best of the front loaders by far though the Bosch is also very good. Re the Bosch condenser dryer. It dried everything very well. It was my first condenser experience -- I've always had vented. No difference except that it got very hot and the door to the laundry closet had to be left open. The only con I could name would be the need to clean the condenser filter regularly, not an easy job, and I wished the machine turned itself off completely (though the Miele doesn't either). I was told also -- knowledgeable appliance store person -- that the Bosch marketing was towards apartments and homes where vented wasn't required. Small spaces. Seems to me that, energy requirements apart, that's a natural market for Euro front loaders. Presumably, American families want larger machines. We're just two and the space-saving aspects of having them under counter is superb. nuthernokie -- glad the cheat sheet is working for you. We updated it recently btw with more notes. I'm just sorry it's buried in a post with a different name and doesn't have one of its own (which I can't ethically do) so it could be found more easily. This post was edited by rococogurl on Tue, Nov 19, 13 at 14:43