On Wed, 19 Jan 2011 09:55:22 -0800, BSAKing wrote:

I have one of these guys and it has served me very well for probably 15+
years, so I have no quarrel with it.

From the manual, the model number is a JVM 250 BVC or JVM 250 WVC
(probably a white or black model).

In any event, this morning old Betsy decided not to heat anything up.
All the bells and whistles are there, fan runs, etc, lights action,
keypad works, just no heat. So I suspect more than likely the magnetron
or xformer.

I was wondering if anyone knows if there is a secondary fuse I could
check on this model before I turf it? Obviously main one is good as
everything else powers on.

The second question is that I remember installing this thing and having
to adapt a hole in the wall to an outside vent etc to fit it. I am
hoping that maybe a new model of the same make would have roughly the
same vent location so I do not have to rebuild that part to put in a new
one.

Or maybe it is standard for all microwaves? Does anyone know?

Any clues or input appreciated.

TIA, BSA

There might exist a high voltage fuse but not always the case. If it
failed from age rather than from a short in one of the high voltage
components it's possible you wouldn't notice it failing. However if it
failed from a short you would have possibly heard a short loud hum and
the inside lamp dim before the fuse blew. There might also exist a
solenoid or triac to switch on the high voltage. If one of these failed
it would cause the symptom you are seeing.



--
Live Fast, Die Young and Leave a Pretty Corpse