Need user manual for duraflame heater - Duraflame Portable Tower Electric Heater

Question edited for clarity and spelling.

there are a number of suggestions here.

https://www.google.com/search?q=Duraflame+Portable+Heater.+How+do+I+change+from+Celsius+to+Fahrenheit

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Question edited for clarity and translated into written English :>D
Question recategorized from Laundry Dryers to a Duraflame one.

It could be the blower.
It could be the thermostat.
It could be the element.

It needs testing by an appliance electrician. If you have a multimeter and the skill, you could do preliminary testing yourself.

Also, they make many models of heater. You could Google

Duraflame (model) no heat no fan.

'Dura Flame' all one word, I corrected that too.

Display shows "E3" Manual Reset overheat protection has triggered. Inspect the heater and check that the air inlets and outlets are not blocked as this may cause overheating. Unplug the heater for 5 minutes and allow it to cool down

It doesn't mention E5 but there's the manual.
https://www.manualslib.com/manual/828643/Duraflame-18ii210gra.html?page=6

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Enerzen pro heater manual - Fixya

http://www.twinstarhome.com/duraflame/products/DFS-450-2/index.html

Has customer service link ,you have to sign up
DURAFLAME TWINSTAR INTERNATIONAL

Hold the power button until the numbers change

try cleaning off the filter that is on the bottom in the back of the unit. It is a fail safe sensor that in the event the unot overheats it shuts off the heater. Worked for me on mine.