Question about GE Spacemaker JVM1640SJ Microwave Oven

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Getting to the circuit board

How do you get to the circuit board? Do you have to unhinge the microwave, or just remove the front?

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  • GreyOwl Jul 15, 2008

    Thank You very much. I found the problem and it as was stated in someone elses blog. The metal fuse is blown.

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First, remove the plastic vent / louver going across the top of the unit. Once that's off, you should see one phillips screw at the top of the control panel frame. Remove that screw, then lift up and out on the control panel assembly. You're there!

Posted on Jul 14, 2008

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Microwave oven front panel not working


The contacts behind the panel get dirty and greasy and can stop working. Remove the front panel use a q-tip and some rubbing alcohol to clean the contact pads on the back of the plastic front cover and the contact pads on the circuit board. Reassemble and it should work. WARNING! Microwaves have very high voltages in them more than 4000V that can easily kill. Make sure its unplugged from the power supply, let sit for a few hours to make sure the caps are discharged and DO NOT touch any of the high voltage lines or capacitors inside the unit, work only on the front panel.

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How do I get the cover off my Samsung over the stove microwave? Do I have to take it off the brackets?


It likely depends on the model. To access the circuit board behind the numeric display, do the following. On the SMH9187ST model (and probalby most models that have the numeric display to the right of the door), you remove the top vent guard that runs across the top front of the microwave. There are 2 screws holding it in. Open the door and then slide the panel 1/2" one direction then it will lift off. Remove the center and right screws on the bottom of the cabinet, directly under the door. Remove the single screw at the top of the numeric display and the display and circuit board will lift free of the cabinet. The connecting wires can each be removed as there is only place they will each attach to when it's time to reconnect. Some are color-coded, others have unique connectors.

Samsung microwaves seem to have a high occurrence of the SE error code. This happens when the edge connector on the ribbon cable gets oxidized from steam that enters the cabinet through the seam at the numeric display and the cabinet itself. You can often remove and clean the edge connector with alcohol and buy some time but it will happen again. Replacing the circuit board is the next step after the cleanings stop working. Places like partsimple.com stock both the display and the board.

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1 Answer

Ge profile microwave f3 error and beep


F3 error code indicates that the keypad for the control panel is bad or has a short. This will cause the microwave to beep continuously after the set clock message appears.
1 Unplug the power cord for the microwave from the electrical outlet. Pull the microwave out from the wall and set it on a table or the counter.
2 Find and remove the two screws from the top of the grille, on the font of the unit, with the Phillips-head screwdriver. Pull the grille off of the microwave.
3 Find and remove the screws that are used to secure the control panel to the microwave frame. Lift the control panel unit up and away from the microwave.
4 Find and remove the screw that is used to secure the green ground wire. Pull out all of the connectors and ribbon cables from the control board.
5 Apply heat from a hair dryer to the front of the control board for at least 30 seconds. Make sure the hair dryer is at the low setting. Pull up on one corner of the top membrane, then peel it off of the control board.
6 Repeat Step 5 for the other membrane that is on the control board.
7 Insert the pliable circuit of the new membrane through the opening in the control board. Remove the wax backing to expose the adhesive for the membrane. Place the membrane onto the control board.
8 Peel the wax backing off of the top membrane, then place it on the control board.
9 Place the control board back on the microwave and secure it with the screwdriver. Reattach the grille, and set the microwave back in place.
10 Plug the microwave back into the power outlet and reset the clock.

Hope this helps.

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1 Answer

Keypad is not working


Remove top cover and than front panel from the microwave,remove the PCB(printed circuit board) and the PCB and the connection strip connecting PCB with panel,problems are generally seen due to moisture deposit or deposit of small insects due to the dampness,if the problem remains after cleaning then finally replace panel itself.

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Remove the cover. Find the fuse probably on the floor of the machine. Of course, unplug it first.

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1 Answer

The power is out and no idea why!!! have checked power


Hello there:
Yes you are right about the fuse.
You will need to remove the outer cover by removing the screws that are on the back these are the ones around the edge and then there are several on the bottom of the microwave.
Once these are removed the cover will slide out away from the front of the microwave towards the back *** somtimes this is verry tight so a flat tip screw driver will help you start to get it to move
once the cover is removed than look towards the front and you will see the circuit board that has the fuse on it. now remove the fuse and replace it with a new one and before you reassemble the cover plug in the microwaye and test to make sure that it now works if not the board that the fuse is on may be bad but if it does work good now just reassemble the cover and you will be good to go ok?
I hope that this has been very helpfull for you.
best regards Michael

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1 Answer

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I had the same problem. The front plate is tabbed into place and removes with a flat tip screwdriver and prying in various spots to pop out the tabs. Once the front stainless plate comes off, you need to get behind the black buttons. There is a circuit board behind the buttons, which they make contact with. The problem with mine was the circuit board pushed beyond two metal tabs that keep it in place, so that the buttons were unable to make contact. I used a curved tool to pull the circuit board back forward in front of the tabs and into place. I put the front plate back on and it works like a champ.

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You absolutely need the magnetron cooling fan to be working, or the magnetron will be destroyed!

It is part # 3511800100 and you can order it for less than $20 here.

Far less than a magnetron.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

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On the electronic control board, the circuit trace will open like a fuse if the light bulb power becomes shorted. If you or someone knows how to use a soldering iron, this can be repaired.
1. Remove the top grille. (Two screws on top)
2. Remove screw above button panel. Push up on panel to remove.
3. Remove circuit board from panel. Look on reverse side for a burned, open circuit trace.
4. Repair circuit trace everything should work again....

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