Thanks Elco for your quick reply.
After posting this entry, while eating breakfast I realized there was one place I did not check - I have wiring routed through the walls of my freezer. I’ll tear that apart and check everything inside there as well.
I think I will order new sensors. While I would love to support your operation, being in Canada, unfortunately your store seems a little pricey for me and finances are a concern. When the new ones come, I’ll add some waterproofing around the shrink wraps in case condensation is getting in there… Maybe some glue and extra shrink wrap. I am using a thermowell in the beer but condensation is still a concern.
I’ll try the above and keep the thread posted. Thanks for your help.