>From what (little) I know about microwave oven operation, the cavity fuse is >there to fail in the event of an extended operation with nothing in the cavity.
-D > On Jun 7, 2017, at 5:48 PM, Meade Dillon via Mercedes <mercedes@okiebenz.com> > wrote: > > I suppose, but none of the other components / wiring has the same issue. > Maybe the QC for those connections was faulty, and resistance from bad > connections caused heat to build up? Maybe someone (daughter unit?) ran > the micro with nothing inside and the fuse actually died from heat, which > burned up the wiring a bit before the fuse blew? > > ------------- > Max > Charleston SC > > On Wed, Jun 7, 2017 at 5:36 PM, Dan Penoff via Mercedes < > mercedes@okiebenz.com> wrote: > >> Is it possible the burned/discolored wiring is a result of high current >> being applied to the circuit on a regular basis over a long period of time? >> >> -D >> >> >>> On Jun 7, 2017, at 5:35 PM, Fred Moir via Mercedes < >> mercedes@okiebenz.com> wrote: >>> >>> Max. >>> >>> High voltage rectifier? >>> >>> (It's been a while). >>> >>> Fred >>> >>> >>> Fred Moir. >>> Lynn MA. >>> Diesel preferred. >>> >>> >>> ________________________________ >>> From: Mercedes <mercedes-boun...@okiebenz.com> on behalf of Meade >> Dillon via Mercedes <mercedes@okiebenz.com> >>> Sent: 07 June 2017 17:29 >>> To: Mercedes >>> Cc: Meade Dillon >>> Subject: [MBZ] OT Microwave Repair (again) >>> >>> Dieselvolk, >>> >>> I've got a dead Whirlpool microwave, part of a built-in-the-wall oven and >>> microwave combined, which is expensive to replace compare to repairing >> the >>> microwave (I'd have to replace both, for at least $1500 or more). >>> >>> One of the temperature fuses is blown. On a 24 year-old microwave, I am >>> tempted to chalk this up to an age related failure, but what is giving me >>> pause is that the burned / melted wires at the connectors to the fuse. >> It >>> doesn't make sense to me for there to be burned wires if the fuse simply >>> died of old age. This fuse, the cavity temperature fuse, is inline >> between >>> an identical magnetron temperature fuse and the 20 amp monitor fuse. >>> Neither of those fuses has any signs of burning / melting or overheating. >>> >>> I've tested door interlock switches and the monitor switch, no problems >>> there. Magnetron and high voltage transformer pass all tests. >>> >>> I guess my question is about the burned / melted wires at the dead fuse, >>> and does that sound normal if the fuse just aged out, or should I keep >>> looking for a deeper problem. I'm going to order three new fuses (about >>> $11 each). >>> ------------- >>> 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 >>> >>> >> >> >> _______________________________________ >> 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 >> >> > _______________________________________ > 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 > > _______________________________________ 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
