Here is the update on the generator problem:
I found a person with the exact generator as ours whose engine
was kaput. So I got their generator head and swapped it out with ours, thinking that there was something wrong with our head. I also removed the original voltage regulator
on the replacement head and replaced it with a brand new one.
The new regulator
blew in 4 weeks (~10 runs). Thinking these non-OEM replacement regulators I have been buying
are not up to snuff, I installed the original equipment
regulator that was originally on the replacement head. It almost immediately started giving high voltages. It will run OK for a while (up to 1hr), then the voltage will spike up high. After shutting it down and starting again, the same thing happens.
So, I don't think this is a generator head problem, but something to do with the engine or post generator wiring
. The engine starts and runs fine and I don't detect any surging or stalling or other change in rpm
. The post generator wiring
is pretty straight forward, sized generously and wired professionally. It is also pretty simple - generator to panel. There is an Outback inverter/charge with transfer switch on the leg controlling the outlets and low-load stuff, and the generator is connected directly to the high load stuff.
Does anybody have any ideas? Answers from Phasor have been along the lines of too much heat and don't shut down while under load. I have massive amounts of forced air cooling
running through the head and never shut it down under load. Could it have to do with the type of load? When the Outback battery charger
is running, the frequency I measure on a multimeter changes from 60hz to 180hz, but drops back to 60hz when a resistive load is added. I have always contributed this to a dirty waveform (like Bill shows) that just gets averaged or perverted in a multimeter reading (I don't have a scope
to see what is really happening). Could the charger
somehow be causing this problem?
This is driving me nuts.