How do you remove the top of the Miele T1515 vented dryer?

It will be similar to this model

https://www.manualslib.com/manual/822285/Miele-T1515.html?page=33

and this one

Sounds like you did a pretty good job. In my experience the blockages are in the rear machine vent, the tube, and just behind the external wall vent. You can even find the odd bird nest in there. Also make sure the flaps on the outside open fully and with ease..

Disassembly instructions

https://www.google.com/search?q=miele+touchtronic+t1403+remove+front+panel

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Changing The Hinging Over - Miele heat pump dryer ...

www.manualslib.com > manual > Miele-Heat-Pump-Dr...

Miele heat pump dryer Manual Online: changing the door hinging, Changing The Hinging Over. You Can Change The Door Hinging On This Tumble Dryer ...

VIDEOS as well

https://www.google.com/search?q=change+the+door+swing+on+a+Miele+T1515+Dryer

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Lots of help here in text and videos

https://www.google.com/search?q=change+the+door+swing+on+a+Miele+T1515+Dryer

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Hi - it makes me wonder as why we always tend to do things first prior to seeking the right/correct advice.

A T9800 Miele is not your everyday cheap dryer as you will know - the questions is have you still got your user Manual and if you do - have you read it carefully - it will tell where the problem lies and how to clean it.

I cannot grasp the fact that you would remove the rear access panel for a heater bank to check the resetable over temperature unit.

The machine clearly indicated a vent/filter error not a heat error - I know at this moment you have and are swearing & calling me names...

I will let you cool down a little ....................and I will tell you what you should have done instead of removing that panel Ok?

check the exhaust hose. it sounds like it has separated from the outlet and is spilling the hot exhaust into the room rather than through the vent outside

is your dryer vented to the outside? Check the exhaust vent to be sure it is still attached to the duct and not plugged with lint

Miele is a top notch machine. Try checking your vent hose. It may be blocked in some way.