Panasonic NNA755W microwave fault

[stephen66]

Hello,

I have a Panasonic NNA755W microwave/grill/oven and the microwave does not work. Last night we used it as a conventional oven and it worked
but there was a burning smell. When we tried to use it at lunchtime
today as a microwave, it switched itself off after a couple of
seconds. When we tried again it whirred for a bit longer but it did
not heat the food, and a third time it switched itself off after a few
seconds again. It is now unplugged.

I have used the UKWG repairer search and am waiting for replies. Does anyone have a rough idea what i shoudl expect to pay for an inspection/repair? I’m wondering whether it would be cheaper to buy a new one? Probably it would for just a cheap microwave only but this is a combination oven so I wonder if it might be cheaper to repair?

Thanks,
Stephen.

[nick dove]

Re: Panasonic NNA755W microwave fault

I have an apparently identical fault on a panasonic NN A772S combination oven (microwave/convection/grill). I got/get the burning smell, the sudden failure, and switching itself off after precisely 10 seconds. Before switching off, at about 5 seconds there is a small click, and then more clicks around 7 seconds as though it’s attempting to do something.
Convection still works.
I am also looking to find out if I should pursue a repair or just buy a new one (it’s about 8 years old).

Stephen – what did you end up doing?

Thanks

Nick

[electrofix]

Re: Panasonic NNA755W microwave fault

both of these microwaves will probably say invertor on the front

the electronics inside the machine switches the unit off if the microwave hass not started so your problem is in the invertor section of the machine

this is not a home repair due to 5000 volts at the magnetron. it is likely to cost over £100 to put right but you may find a dealer with secondhand spares

Dave

[nick dove]

Re: Panasonic NNA755W microwave fault

electrofix wrote:both of these microwaves will probably say invertor on the front

the electronics inside the machine switches the unit off if the microwave hass not started so your problem is in the invertor section of the machine

this is not a home repair due to 5000 volts at the magnetron. it is likely to cost over £100 to put right but you may find a dealer with secondhand spares

Dave

Dear Dave,

Thank you very much for this.
Yes it does have ‘inverter’ written on the front.
When you write “not a home repair” do you mean that it would need to be taken to a workshop, or that it’s not a diy job?

Thanks again

Nick

[electrofix]

Re: Panasonic NNA755W microwave fault

because of the high voltages involved it is not a job to be undertaken by untrained person. there can be enough voltage to knock you across the room after the unit is switched off

the job can be undertaken in your own home or at a workshop. we are in merseyside but there will be other technicians around the country who may be able to quote

look in repairs@ to see if anyone else covers you part of the country

Dave

[nick dove]

Re: Panasonic NNA755W microwave fault

Thanks very much Dave

[Author]

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