Samsung OTR Microwave not venting

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Old 03-07-20, 02:48 PM
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Samsung OTR Microwave not venting

I have a Samsung OTR microwave that's just over a year old. It looks like the vent motor isn't running. I took the motor out and spun it and it seems like it spins fine. When it runs though, the motor doesn't spin. What should I do in order to troubleshoot? Should I just replace the blower motor in the back? Is there a fuse some place or something that I can check to see what is wrong or is it time to replace?
 
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Old 03-07-20, 03:06 PM
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Post model # and somebody usually can help
 
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Old 03-07-20, 07:19 PM
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My bad. The model is samsung me18h704sfs.
 
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Old 03-07-20, 07:38 PM
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Page 24 in the service manual has diagnostics for the exhaust blower motor.
It uses a capacitor that may be bad.

Samsung service manual (pdf)
 
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Old 03-07-20, 08:11 PM
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Awesome thank you. I have another question....how do I take this thing off? I removed the two above-mount screws and it swung down, and I can see something like an LCD mount bracket but how do I actually get the thing off? OK, I see that this might be an issue with the run capacitor. The description is a little nebulous, is there a photo or something? Also, the motor doesn't spin at all, but I can spin it by hand. I don't ever see it move no matter what I do.
 

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Old 03-07-20, 09:31 PM
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Look at page 10 in the manual.

You remove the two top bolts and the entire unit hinges down off the back plate.
Be sure to use two people when you do it. One needs to hold the weight of the unit up.
Video of removing under cabinet microwave.

In that servicing section they explain how to check the cap and the motor itself.,
Check and make sure the motor is not open with your ohmmeter.
 
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Old 03-08-20, 07:13 AM
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Is there a way to see what the pat # is for the capacitor? I see this DE59-50002A capacitor but is it that part?
 
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Old 03-08-20, 10:17 AM
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Yes.... that is the part number for the blower motor cap. It is a 10uf @ 220vac capacitor.
You don't have to use a genuine OEM part. Just match that value.

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Old 03-08-20, 04:55 PM
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Ok. I just hit the vent button on the unit and it feels like it does spin. Is there some way to check to see what the actual RPM is supposed to be? What it looks like it's happening is that the area behind the grill seems to be getting the steam from the vent and other sticky waste through there like it's venting forward but I am not a hundred percent sure. Sorry I haven't had to fix one of these before.
 
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Old 03-08-20, 05:00 PM
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Typically with a bad cap.... the motor will not start or spin slow.
You'd need some type of tachometer gun to read the speed.
 
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