12V lights flicker on generator
I know there is another thread here called "Voltage fluctuation" and I suspect I'm getting some of the same effects. However, this is an Onan 5500 built-in that didn't used to do this. Is there som...
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I haven't run my new-to-me WFCO through the paces as I am far from home. But input oscillations severe enough to affect switch mode output is SERIOUS. This is why I insist on pacjing a quality NEEDLE TYPE voltmeter. Mine is sitting 3' from me. That Onan could easily be oscillating 200+ volts peak-to-peak. DANGER WILL ROBINSON. That is enough to do serios damage. Sounds much like the voltage divider network in the genset took a powder. I'm afraid diagnostics here is beyond what the average owner would want to tackle. Professionally, the generator is taken offline. The regulator is disconnected. A small constant current is impressed via a power supply across the field after a 2KW dummy load has been connected. This isolates the problem to generator or regulator. With a resistance fixed test load the output had better be as steady as a rock.
