I'm running an SCC-2345 box with three TC-02 modules inside. I started having an issue where, in ambient air, one channel would read ~10deg F higher than the other two. If I unplugged that thermocouple one of the other channels would jump to the high temperature. I verified each thermocouple/extension cable I was using with handheld readers. Each reading was coming from a MAX virtual channel, mapped to the box, CJC set to built in.
Not sure what's happening/what could cause a box that had been working fine to start giving me grief like this. Anyone seen something similar?