Quote:
Originally Posted by RVjon
Cummins 36KY propane Generator on 2018 Gemini 23tr.
Intermittently will start and immediately stop giving a 33/12 code (high voltage). If I disconnect Gen from system (open circuit breaker at Gen) It will usually start and run, after a few minutes I can reconnect the circuit breaker and everything is OK. Sometimes it will quit after several minutes, but if I continue to restart it, it will run ok. Internet has procedures, but they require checking voltage across posts that I cannot access as Gen is mounted under chassis in center of RV.
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I don't see a code 33, but a code 12 is overvoltage as you said. That's a controller issue - no easy fix.
There is no low oil/high oil cut off switch so that's not the issue.
Low gas level and it wouldn't start.
Probably need to schedule that Cummins service appointment.