Sudden fluctuations in bean probe readout not IBTS


I have a new Aillio Bullet and have finished seasoning the drum and performed about 10 successful roasts with good smooth profiles. Recently I am getting fluctuations in the “bean temperature readout” (not the IBTS readout) which by itself is not a bother. However, the calculated ROR becomes unusable as the spikes compress the scale. I am assuming this has happed to others before so I am hoping to get some advice on the cause and cure.
the link to a typical problem profile follows


I think there is a periodic electrical connection between the bean probe and the chassis.
This normally happens if the wires to the bean probe that runs between the outside (aluminum) and inside (stainless steel) plates squeezes the probe wires.
You will need to take out the the buttons / control board module and then remove the front plate. Unscrew the inside plate and check that the wires from the probe are not squeezed and that they are running in the groove.
If this does not make any sense please contact Aillio to see if they have a guide - but it should be pretty straight forward.