Sean,
Here is an update. Put it all back together. Never could pry the sensor housing PVC joint apart, and was frightened of cracking it.
Is it screwed in or is it merely pushed in?
Did my usual, sprayed contact cleaner, and for the moment it is working.
Obviously I need to get this changed out. It seems to me that the top contact, the one to the digital unit itself, is kind of loose even though it does have those snap on releases like a computer board, just a lot more loose.
So I will deal with tech support tomorrow. Hopefully you have someone in Honolulu who can address the problem.
Aloha

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