Question about Electrical Supplies
Posted by Anonymous on
all diode are not the same . they all have a different value, so it all depends on the kva input /output it determine the values to be used .
you do not need to use the original as long they are of good manufacturer
Posted on Dec 21, 2017
pulling to many amps,diodes could not handle amps so they failed.unit should have kicked its breaker before the diodes burned out.most units have their own breaker to protect the system.I would replace the control board first see how unit reacts,probly fine,if not the you go to next step.
Posted on Jun 27, 2009
SOURCE: GE Spacemaker diode connection
A good high voltage diode will read open in both directions on a standard meter. See: http://www.gallawa.com/microtech/diode.html
If the diode is NOT shorted or burned looking, it's probably fine.
There should also be a "mini-manual" hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting, & testing.
It has a wiring diagram and a schematic which shows you how the components are connected.
On one terminal of the high capacitor, there is only one connection - to the high voltage output of the high voltage transformer.
The other terminal of the capacitor will be connected to the high voltage diode and the magnetron, as well as one of the heater (cathode) windings of the high voltage transformer.
Here is info on testing the mag:
(continuity can be good even though mag is bad!)
You can find links to helpful exploded view diagrams and part ordering help here.
I'd recommend that your bookmark this link to your favorites.
We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.
Posted on Dec 07, 2009
Troubleshooting advice above link.
Sometimes it is the head gasket, check, it can be, incorrect fuel mixture, far too lean, exhaust should be a light grey color. Check enough oil in sump. ensure free flow of air all around machine.
Posted on Mar 28, 2010
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