Eloy,
The controller is failing and should be replaced. The part number is; 4781W1M427Z and can be found by clicking here.
The repair here is pretty straight forward, but I gotta tell you... I generally don't work on Goldstars so I'm working from memory with these instructions, OK?
Grab a step stool, open the cabinet above the microwave (MW) and UNPLUG IT!!! Now look at the top of the MW just above the grill, you should see a couple of phillips screws, remove them then remove the grill itself. Now you'll see the single screw that fastens the control panel, remove it. Now (with the door open) lift the control and pull towards you. This will expose the controller.
There will be a LOT of wires connected to it. What I do is take a sheet of paper and make a "map" of what wires go where
BEFORE removing any of them. You may notice that some of the individual wire terminals are difficult to remove, these have a "locking tab" on them. DON'T FORCE IT OFF! Look closely and you'll see the tab, all you have to do is use a small flat screwdriver or the tip of a steak knife or anything small and sturdy... just lift the locking tab slightly and pull the wire at the same time, it'll come right off.
Now that you have the controller removed from the MW and laying on a flat surface all that's left is to do is swap the old controller for the new one and rebuild everything. There ya go! MW is fixed!
Hope this helped ya! If so, don't forget to rate!
Tracy
I currently have a Whirlpool model mh7130xeb-1 that vent to the outside-I trying to replace it with a Whirlpool gh7155xhs-1. I would like to vent it to the outside but i do not see a way to move the fans. Also are the mounting plates the same--Thanks MG
I currently have a Whirlpool model mh7130xeb-1 over the stove microwave and it vents outside. I want to replace it with a Whirlpool gh7155xhs-1 but do not see a way to make it vent to the outside. Also are mounting plates the same for these two models Thks MG
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