Hi , I have just purchased the aillio bullet R1 v2 , and the drum is doing a weird sound , it is well calibrated but after using it for couple of roasts it started making a sound from the back ? can you advise ?
You could try this…
Also, you might not have pushed the chaff filter basket well enough into the grooves and you’re hearing the fan banging against it. Might be a bean that accidentally made its way under the drum.
In any case, could you be more specific as to the noise you’re hearing? Maybe make a short video and post it here so we know exactly what you’re talking about.