[TechAssist] Re: Emerson Microwave MW8107WAC blows fuse once in a while, cavity yellowed

  • From: "Phillip R. Hull" <phil245@xxxxxxxxxxxxx>
  • To: <techassist@xxxxxxxxxxxxx>
  • Date: Tue, 4 Mar 2003 12:31:09 -0500

I forgot to mention that the unit may overheat if you are running it with
the cover off.   The cover is part of the airflow system and will not cool
the mag and other parts with it off, and a hot mag may smell.  also the
smell of burnt popcorn or anything else,  may take along time to dissipate
Phillip R Hull     STET
phil245@xxxxxxxxxxxxx
----- Original Message -----
From: "Technotronic Dimensions" <techforce@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Tuesday, March 04, 2003 11:26 AM
Subject: [TechAssist] Re: Emerson Microwave MW8107WAC blows fuse once in a
while, cavity yellowed


>
> Gary:
>
>            Might be a bad Magnetron. I once had one that made a bad smell,
> sounds like what you describe, and you could see it smoking a bit  too
when
> powered up. I think theres some MWO Spray Paint somewhere for the inside
if
> its coming off.
>
> Steve
> Technotronic Dimensions, NY (USA)
> WWW.TECHNOTRONIC-DIMENSIONS.COM
> 1-877-817-9885
> 1-877-817-9885 (FAX)
>
>
> ----- Original Message -----
> From: "Gary McCartney" <gary@xxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Tuesday, March 04, 2003 10:48 AM
> Subject: [TechAssist] Emerson Microwave MW8107WAC blows fuse once in a
> while, cavity yellowed
>
>
> >
> > I have this Emerson Microwave, model MW8107WAC in the shop. This oven is
> > only about a year old. The customer has brought this back to me the
> > second time now with 20A fuse blown. He claims he hardly uses the oven
> > so maybe it cooks approx. 20 times between fuse blows. Each time I check
> > the safety interlock switches while opening and closing the door.
> > Everything checks ok so I install new fuse and boil water a dozen times,
> > then send unit home.
> >
> > While testing this oven yesterday, I notice a strange kind of odour,
> > seems like it is mainly near the front control panel. Smells a bit like
> > burnt popcorn but hard to describe exactly. It doesn't smell really like
> > electrical burn such as a hot resistor. I was boiling water in a large
> > margarine container at 4 minutes each time. I am trying to blame the
> > smell on the margarine container so I went and used a Pyrex bowl
> > instead. The oven kept producing this smell. I took the front panel all
> > apart and sprayed it with disinfectant and let it sit over night. Today
> > it smells somewhat better but while cleaning out the oven cavity I
> > notice that some of the white paint has turned yellow, particularly a
> > large spot on the rear wall and a smaller spot up front where the vent
> > holes are in the side wall near the control panel.
> >
> > I have powered the control panel away from the oven and it is not
> > producing the smell. Is it the white paint getting hot that is doing it?
> > Why is there spots where the paint has yellowed? The rotating glass tray
> > is in working condition, so I would say the microwaves should be spread
> > around evenly. I removed the waveguide cover and didn't find any dead
> > mice or as such in there, hehehe.
> >
> > Any help appeciated.
> > --
> >
> >
> >
> >
> > Gary McCartney
> >
> > McCartney Electronics
> > 7134 Fife Rd, RR 7
> > Guelph Ontario Canada N1H 6J4
> > Fax: (519)821-1530
> > email: gary (at) number63.ca
> >
> >
>
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