[TechAssist] Re: Whirlpool Microwave oven model MH7140XFB-0 (over counter unit )
- From: "Phillip R. Hull" <phil245@xxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Fri, 30 Jan 2004 21:42:31 -0500
Check for open primary on the power transformer on the control board. also
check for open copper foils
Phillip R. Hull STET
phil245@xxxxxxxxxxxxx
FAX 517-569-2242
----- Original Message -----
From: "Larry Poffen" <lpoffen@xxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Friday, January 30, 2004 4:19 PM
Subject: [TechAssist] Re: Whirlpool Microwave oven model MH7140XFB-0 (over
counter unit )
> Yes whirlpool did the rework about a year ago. I have another unit that
> they paid for while my microwave was down. I helped the guy remove the
oven
> & seen a little bit of the recall work, seems he left some paperwork, but
> can't find it. I removed the circuit board 7 found 1 2sa1015 xstr shorted
&
> replaced, but no help. Where does the 24V come from to operate the relay
> on the board? thanks for responding. I will check it further this
> weekend Larry
> ----- Original Message -----
> From: "Phillip R. Hull" <phil245@xxxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Friday, January 30, 2004 1:51 PM
> Subject: [TechAssist] Re: Whirlpool Microwave oven model MH7140XFB-0 (over
> counter unit )
>
>
> > Did you have the rework kit installed for the recall?? Also check the
> > thermostat on the magnetron and there is a thermostat hidden under the
> > plastic air box on top. The other thermostat on the bottom will check
> open
> > and the other two should check closed
> > rework kit # 8184461
> > Phillip R Hull STET
> > phil245@xxxxxxxxxxxxx
> > FAX 517--569-3075
> > Professional Technicians only
> > ----- Original Message -----
> > From: "Larry Poffen" <lpoffen@xxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Friday, January 30, 2004 12:00 PM
> > Subject: [TechAssist] Whirlpool Microwave oven model MH7140XFB-0 (over
> > counter unit )
> >
> >
> > > This is my own personal home microwave model MH714OXFB-0 Whirlpool
> unit.
> > It was hit by a power surge & has no display or power to front panel.
20
> > Amp fuse is Ok & have 120VAC to both sides to grd. This has a panel
with
> > the numbers NSFC2 (0) 4619-640-25303 on it. Also there is a unit
(round)
> > near the fuse that says 36TX12 F60-15C on it that has no continuity
thru
> > it. don`t know what it is. Anyone work on these have any ideas on
where
> > to start or what to do? A print would be appreciated.. Hope this is
not
> > out of line for tech assist. Larry
> > > Larrys TV Service
> > > Broken Arrow OK 74011
> > > phone 918-455-1041
> > > Fax 918-451-4485
> > > e-mail lpoffen@xxxxxxx
> >
>
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