Kevin February 24, 2015 for Model Number jvm1750m1cc I thought I tuned on microwave timer, but instead turned on microwave with nothing in it.I came back later and microwave was off and no power. what should I check. Thank you.
1 Answer Hello Kevin. You need to check the fuse in the unit and the thermal cut outs. You can test this with a multi-meter TJMA-DMT3. Here is a link on how to use a multi-meter. http://forum.appliancepartspros.com/oven-repair-including-ranges-cooktops/4810-how-check-continuity-ohmmeter.html Read More...
Mike February 24, 2015 for Model Number JVM1842BD001 I have a GE Spacemaker XL1800 (model JVM1842BD001). The microwave just stopped working, no power. I checked the fuses and found the one under the air hood on top of the microwave wasn't working, or at least I don't think it's working. I tested it for continuity and it was open. I'm not sure it this one should test open or closed. The part number is WB27X10195. There's a lot of grease build up that was around the fuse and the blower motor. Would this cause the fuse to fail? There was enough grease that you can see the imprint of where the fuse was.
1 Answer Mike, The thermal cutoff should read closed for continuity which would mean that it is bad since reading open. With what could cause the issue, grease build up around it could cause the thermal to get too hot but is normally caused by something inside the unit getting too hot and causing the failure. Read More...
Ken September 19, 2014 for Model Number JVM 1540 GE microwave Just went dead, changed the fuse, went dead again, what is it.? Some web site said thermostate, but I think there are two in my microwave, please advise
1 Answer Ken, Normally when there is an issue in which the ceramic fuse keeps blowing the issue is with the door switches in which the switches would need to be replaced at the same time as the fuse. Read More...
James September 07, 2014 for Model Number GE model JES1456 Hello, There is no power on my Microware at all, I thought it might have been the fuse, I changed it, still no power on the LCD panel, inside the Microwave, none whatsoever... Can you help to see where the problem might be, this one is in good condition and I don't want to buy a new one... Thanks..
1 Answer James, You will want to check the continuity of the cavity thermal cut off and make sure that it has continuity. If not then replace the thermal cutoff. Read More...
1 Answer Hello Roger. You most likely have a "high voltage" side malfunction. Transformer, diode, magnetron, Capacitor. You will need to be extremely careful if you decide to test the components with a multi meter, Very high residual voltage is present, so make sure you remove power to the microwave and short across the terminals on the capacitor. The magnetron should have a reading of less than 1 ohm resistance across the two terminals, and an "open" circuit between each terminal and chassis ground. The diode/rectifier should have a resistance reading in one direction only, no resistance, or resistance in both directions indicate a faulty diode. The primary winding on the trans former should read approximately 450 Ohms resistance, the secondary winding should read 80 ohms resistance, and the filament transformer should read 100 ohms resistance. If all the readings are proper and in range, replace the magnetron. Read More...
Benjamin August 23, 2014 for Model Number JVM1440WH01 Hello. I have a GE model JVM1440WH01 that runs normally but does not heat. I tested the cap and it measures OK at 886nF. I also tested the magnatron and it shows 0.2ohms between terminals and no shorts to ground. I have also tested the three door switches and they open/close with the door. One is shorted with the harness attached but operates normally with no connections. Is this normal? The only possible issues I can find is the high voltage diode. I am using a Fluke 87 and cannot get a reading in diode mode. I also found one thermal switch that is open but I am aware that there is one switch that should operate this way. This switch is mounted the metal cover that is removed to access the transformer and magnatron. Is this the one that should be N/O? Thanks in advance!
1 Answer Benjamin, For testing the diode here is a link that will help. http://forum.appliancepartspros.com/microwave-repair/19868-diode-testing.html You will want to test the transformer on the unit to make sure that it is good. The primary winding on the trans former should read approximately 450 Ohms resistance, the secondary winding should read 80 ohms resistance, and the filament transformer should read 100 ohms resistance. If all the readings are proper and in range, replace the magnetron. Read More...
John December 26, 2013 for Model Number RVM1535DM2WW RE: Hotpoint rvm1535dmww The mw completely died. No display - no beeps - no nothing. Outlet is fine. I temporarily bypassed the "first" TCO (i.e. the one that comes right off the line power source), and the unit came back to life - so I know the TCO needs to be replaced. I've search everywhere and can't tell whether this one is WB27X10194 or WB27X10195. I've looked high and low, and can't find technical specs for either of these part numbers, so I can't tell which is the one I need to order. Do you know/have specs for each of these (WB27X10194 and WB27X10195) so I can figure out which one I need to order ? Thanks !
1 Answer Hello John. WB27X10166 is on the magnetron and WB27X10194 is on the left looking from the front and WB27X1127 is on the right side behind the control panel. Read More...
Nancy December 22, 2013 for Model Number JVM1440WH01 The key panel sound like is works, but the lights and fan did not come on. Everything else work well. It happen when I was changing the light bulb, did an explosion. I change the light bulb connector and have new bulb, stil not working. thanks
1 Answer Nancy, With the fan and the lights not working, the most likely cause for this would be a faulty control board. Read More...
Jonathan B. November 08, 2013 for Model Number 2007 ge microwave jvm1740dm1bb I heard an intermittent sound one day, there's power but the clock button is not responding. I unplugged it and plugged it back in it says press clock but still not responding. I tried other buttons such as express heat and it responds, but then after trying to press different buttons it says shorted keypad. I tried unplugging it and plugged it back in. There's power but no keypad are responding. Any suggestions?Any parts that need to replaced? Thanks
1 Answer Hello Jonathan, You need to open the control panel and check the ribbon cable from the membrane switch WB07X11040 to the control. If cleaning it with a dry pencil eraser, (rub with eraser only toward the end of the ribbon cable to prevent damage to same), doesn't correct the issue, you will have to replace the membrane switch to restore normal operation. Read More...
Derek M September 20, 2013 for Model Number JVM1860SF001 I have a GE model JVM1860SF001. My wife said our power surged this week and she had to reset several breakers to the kitchen outlets. The microwave is completely dead (no display, no lights, no fan), and I tried different household outlets just to be sure it was getting power. Both 20 amp fuses ("main" and "HVT") showed closed, I bought new ones just to be sure and still nothing. Checked the three thermostats; the one immediately behind the key pad was closed, the one just 3" aft of that showed open, and the third one located above the power supply was also closed. The thermostat is "NT101 KIE", and all three are the same part number. Should this second thermostat be reading closed, and if so, does power applied to this thermostat open it by a switch? If replacing this thermostat doesn't fix the issue, I'm out of my league and will have to take it to a professional. Many thanks in advance!
1 Answer Derek, Since the main fuse checks ok then test for 120 vac to the control board. If there is 120 vac to the control board then replace the Control board. If there is no power then the thermal cut off that is showing open would need to be replaced. Read More...