Angela September 22, 2016 for Model Number JVM1440WH04 Microwave works but is quieter than it used to be. When it gets to hot or steamy inside it shuts down till it cools off then all the displays come back on and I can use the microwave again. What would be causing this problem? What do I need to fix the problem?
1 Answer Hello Angela, This is normally caused by the cavity thermostat WB27X10195 or the control board WB27X10871. Read More...
Todd July 13, 2016 for Model Number PVM1870DM3CC What could cause the small 20amp fuses just behind the grill to blow repeatedly?
1 Answer Hello Todd. You will need to check the door switches and see if they are bad and need to be replaced on the unit. 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...
1 Answer Hello Mick. Just remove the outer cover off the microwave. Then you can remove and replace the fuse in the unit. Make sure it is unplugged. Read More...
1 Answer Anna, The most common cause of a microwave not heating would be a bad magnetron. There are other factors that could cause this like the diode, transformer or a bad capacitor but the magnetron is the most common. Read More...
Donald May 24, 2016 for Model Number JVM1661BB001 When I started to use my Micro-Wave it made a small pop and it quite heating, when I tried it again, a little louder pop, no heat, then one more time a much louder pop! Everything seems to be working fine except it no longer heats ... any idea what most likely is the problem? Thanks
1 Answer Hello Donald. 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...
G Mayberry March 26, 2016 for Model Number JVM1860CF001 Microwave not heating. All else seems to be functioning.
1 Answer G Mayberry, You will want to test the magnetron for a resistance of less than 1 ohm and if it is not then the magnetron would be the issue. Read More...
Alfred B March 18, 2016 for Model Number JVM1540SM4SS Fan goes on but will not heat or defrost am waiting did you get.
1 Answer Alfred, You will want to check the magnetron on the unit for resistance of less than 1 ohm. If the resistance is open or more than 1 ohms then you will need to replace the magnetron. Read More...
Kay B. March 06, 2016 for Model Number JVM26050BH05 spacemaker Microwave Where do I find the Board and ribbon? Can I clean these?
1 Answer Hello Kay, You can clean the ribbon cable from the touchpad with some dis-assembly. When ithas been removed from the connector on the main board you can rub it with a dry pencil eraser only toward the end of the ribbon, (do not go back and forth, one direction only), to prevent damage to the traces on the ribbon. To access, disconnect power to the microwave, remove the two screws and remove the air grille. You will then see a single screw on the right above the control panel. Removing this screw will enable you to lift and remove the control panel. Read More...
1 Answer Hello Linda. 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...