Hi, You can 1. Check if your Teflon tube is fully connected;
2. Heat the nozzle to 200° and manually feed the consumables to see if it can be discharged normally.
Determine if the nozzle is blocked;
3. Check if the Teflon tube has any waste.
I hope this can help you.
A30 problem
Re: A30 problem
-Keep your mind and try to test it. 
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-Everything will be fun！-Support all Getech printer.
-You can ask me the questions and I will kindly reply.
-Respect others is the best way you can get help!