> Richard,
> Thanks for the kind words and vote of confidence, but it was not I. I
did
> discuss finding a replacement bridge rectifier, but I must admit I know
very
> little (yet) about Onan control boards. (Mine still works, so haven't
gone
> there. Yet.)
snip
> Rick Staples
> '75 Eleganza
> Louisville, CO
Rick and others,
I meant to comment in the bridge rectifier discussion the other day but
family events intervened.
Bridge rectifiers often burn out because people start and stop gensets while
there is a heavy load on the output.
This stresses the bridge rectifier. A way to save the rectifier is add a
fuse in series with the rectifier circuit.
I did this with our boat genset. When some one forgets to turn off breakers
first, it will save the rectifier.
I am not sure what value fuse the Onan would need, maybe one of our experts
will know the maximum working field current ?
Also some recent posts advised never run an Onan without a load present.
Does the operators manual say this ?
Automotive alternators need a load present or you can blow output diodes
because voltage soars to a high value without a load present.
It's an unjust world, probably politically incorrect to even mention, but
alternators are NOT created equal.
The Onan design is different and appears immune from needing a load to limit
it's output voltage.
So, is this a "myth" or does someone have an explanation for the advice ?
Don Miller
75 Glennbrook project
Shenandoah Valley of Virginia
> Thanks for the kind words and vote of confidence, but it was not I. I
did
> discuss finding a replacement bridge rectifier, but I must admit I know
very
> little (yet) about Onan control boards. (Mine still works, so haven't
gone
> there. Yet.)
snip
> Rick Staples
> '75 Eleganza
> Louisville, CO
Rick and others,
I meant to comment in the bridge rectifier discussion the other day but
family events intervened.
Bridge rectifiers often burn out because people start and stop gensets while
there is a heavy load on the output.
This stresses the bridge rectifier. A way to save the rectifier is add a
fuse in series with the rectifier circuit.
I did this with our boat genset. When some one forgets to turn off breakers
first, it will save the rectifier.
I am not sure what value fuse the Onan would need, maybe one of our experts
will know the maximum working field current ?
Also some recent posts advised never run an Onan without a load present.
Does the operators manual say this ?
Automotive alternators need a load present or you can blow output diodes
because voltage soars to a high value without a load present.
It's an unjust world, probably politically incorrect to even mention, but
alternators are NOT created equal.
The Onan design is different and appears immune from needing a load to limit
it's output voltage.
So, is this a "myth" or does someone have an explanation for the advice ?
Don Miller
75 Glennbrook project
Shenandoah Valley of Virginia
wner-gmcmotorhome]On Behalf Of Donald W.
