As mentioned, the most common P6042 (and A6302/TCP202) failure is a broken transformer. If you drop the probe from a table height to a hard floor (not carpeted), there is a very high likelyhood that the transformer is ruined.
Well, data point - I have 2 P6042s and I had 2 bad cables and no bad
transformers. I think the cable design was so bad that the probe
usually stopped working and was put away before the transformer could
get damaged.
