Conical fermenter thermometer#160

I have a set of three conicals conected to my glyco chiller and recently 2 of the fermenters have started to display wrong worth temprature.
So the glyco chiller goes bananas.
If temrature on conicals is set to 4 C it will chill worth down to 0 C before displaying 4 C.
My digital temrature meter has recorded this and ive dubbel and tripple check.
Set temp to 7 C and worth will be around 5- 8 C.
Set temp to 5 or 6 C and it will still be acting as at 4 C but more moderate.

It does not mather if I swap panels or if I brew Lager or Ale … dryhoping or not, under or over yeast.

Is there anyway to re calibrate?!

Hi Martin, please could you send this enquiry to info@grainfather.com so that the Customer Service team could manage this with you. Many Thanks, Rudi