I don’t think this a place for my problem
m but I cant find a starting point..
MY a1mini wont hold a constant temperature on the nozzle
Do you know the temp range and duration of temps?
Mi problema es que tengo fallo de temperatura de boquilla cuando imprimo PETG, pero no cuando imprimo PLA. Reemplacé el sensor de temperatura porque estaba arrojando lecturas erróneas de resistencia, pero sigue el mismo problema. ¿Alguna sugerencia? Gracias. 
thanks for the message but I don’t speak spanish
We need more information to help you more.
You might need to replace the hotend heating assembly, you might need to make sure your nozzle is seated correctly, you might need to replace the toolhead board.
No one can give a good answer with limited information.
What information do you need? the nozzle has not been removed so seating should not be a problem. as for the others what is the one I should try next.I dont what to replace parts for the fun ofit thsi unit is only 7 months old and should be still working.
It’s always good to take photos when you have trouble describing something.
As far as I can see, you can’t do that yet. First, you have to complete the forum tutorial and confirm that you have read and understood the rules. This will take you less than 5 minutes. You should have received a message about this in your forum mailbox.
Photos are important, especially if you need help from support.
Next, we come to the next point. Please try to write understandable texts. Websites like this one can help you with that. If people can’t understand you, they can’t help you. Of course, you can also ask someone from your family or friends to help you write text and take photos.
If you have problems with English, there is also a subforum with various other languages:
In short: Write clearly, take photos, provide as much information as possible, otherwise no one will be able to help you, even though everyone here would like to.
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7 months is a long time. For someone like me, 7 months is about 1200 print hours. 3d printers are not appliances. You need to maintain them on a set schedule, including things like nozzles and belts.
Give all the information you feel like you can.
Pictures of print results?
Why are you concerned?
Again, have you opened a support ticket? Support tickets are slow, but they are the best way. We can help you troubleshoot, but we can not send you new parts.