Any advice for me before I rewire a 3G Marzocco (Linea AV MASK) entirely:
Symptoms: R Hand group buttons light up, no others do. Middle "double shot" button engages the hot water spout (toggle switch does nothing for the hot water). All other functions are working great.
There are no grounding issues, all the flow meters are operating normally and resistance checks out, ribbon cables are new and plugged in correctly and the brain operates another Marzocco just fine, so no problems there. I can't see any obvious wiring issues, but before I pull it all out, has anyone run into an issue of this sort that could point to a specific place to check for a wiring snafu? ESI has diagnosed that it is a wiring problem.
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