Printer cannot print ABS

It seem to be not possible to print ABS with my printer.
The printer is not heating up to 245 C. By blocking the fan I have been able to load ABS , but the printer is not printing on 230 C .
Also unload on 245 C is not possible.

I’ve had the same issue.
It turned out that the temperature sensor was not correctly placed.

When you place the sensor you have to feel if there is a blob, i used one of the solder blobs instead of the sensor.

You should check if your sensor is placed correctly.

Best regards,