Oops, sorry for the repeat, thought I had not sent that and lost the draft...
------------- Max Charleston SC On Wed, Jun 7, 2017 at 5:43 PM, Meade Dillon <dillonm...@gmail.com> wrote: > Dieselvolk, > > I'm trying to diagnose a dead 24-year-old Whirlpool microwave. This is > part of a built-in oven and microwave combo, so replacing the microwave > means replacing both for at least $1500 or more. I'd much rather repair > than replace. > > One of the three fuses has blown (cavity temperature fuse) and the wire > connectors are melted / burned at the connections. This fuse is between an > identical fuse for the magnetron temperature and the monitor fuse, and > neither of those fuses exhibit the same melting / burning at the wire > connectors. The blown fuse is rated for 10 amps / 250 volts, same as the > magnetron temp. fuse. Monitor fuse is rated for 20 amps. > > I've tested the components that commonly cause a blown fuse (door > switches, high voltage transformer) and also the high voltage capacitor and > rectifying diode. I don't see any burning / melting on the control board > or any other wires / connectors. > > What thinks you? Would a fuse that ages out and dies exhibit burned / > melted wires? Do I need to keep looking for the real cause of the blown > fuse? > ------------- > Max > Charleston SC > _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
