Temperature probe on Apex A3 won’t calibrate

[SamT125]

I bought a used Apex A3 controller from a very nice member on here.
It’s less than a year old and was sitting for a while before he sold it.
The temperature reads as 19.6°, tried calibrating multiple times and even bought a new temperature probe but nothing. Tried unplugging the energy bar for a few minutes as well, but nothing.
Should I chalk this up to being a faulty unit?
Anyone encountered this before? Any help would be appreciated.

 

[scuba steve]

19.6 is a default for not being able get a reading. Could be a bad probe, could be a bad connection, could be a bad port on the controller.
Try cleaning the port connections to start.

 

[SamT125]

Thank you so much for the quick response.
Bought new probe today and plugged it in. Just tried cleaning the connectors on the brain,
Still no luck. I submitted a ticket to Neptune.