Sharp R7A50 Microwave tt motor &oven light on all time

[fk]

🙁 Hi Guys
I have a Sharp R7A50 microwave, I have been on the sharp basic microwave course, ( ie I know the 3 D’s and the high voltage dangers )
the problem seems to lie with the DPC as I do not have a manual for this onecan anyone give me a reminder.
Have eliminated door switch and relay 1 both ok?

[loopey]

Re: Sharp R7A50 Microwave tt motor &oven light on all ti

ah been cought out on this one to have a look at the cam that opens and shuts the flap to the microwave cavity air flow it may have melted stopping the cam to switch off to the stop position , it wont finnesh till it does ..
hth l not sure on that model thow 🙂

phil

[fk]

Re: Sharp R7A50 Microwave tt motor &oven light on all ti

Thanks anyway loopey
This is my own one at home I got as far as the digital programmer circuit but have not worked on one of these for a while. Anyone help with electronics think it may be transister? 🙁

[pete909]

Re: Sharp R7A50 Microwave tt motor &oven light on all ti

hi
does this happen when the door is open or shut,
also does this happen when in standby mode

[fk]

Re: Sharp R7A50 Microwave tt motor &oven light on all time

Think you can help pete909 ?
The tt motor and light are on all the time as soon as swithhed on at the socket.

[Gordy29]

Re: Sharp R7A50 Microwave tt motor &oven light on all time

check door micro switchs and the door latchs

[electrofix]

Re: Sharp R7A50 Microwave tt motor &oven light on all time

check printed circuit board for damage and check for earth faults

Dave

[Author]

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