FIXED Problem with primary microswitch

[freya105]

Model

NN-T973SF

Brand

Panasonic

Age

More than 10 years

Microwave stopped working yesterday - timer works, light comes on but no heat and turntable doesn't move.

Opened it up and found the top microswitch connector is burnt i.e. the white plastic housing is black and crispy. All microswitches appear to be working normally. Fuse not blown. I've cleaned the connector, reinstalled and powered up. Everything seems to be working again normally.

BUT - obviously something caused the connector to arc and melt. Any ideas? Could this just be a temporary fix due to opening up and cleaning everything?

I plan to wrap the now exposed connector with electrical tape - is this good enough?

Thanks for any advice.

 

[rickgburton]

Replace the microswitch

 

[freya105]

Replace the microswitch

Thanks - do you know if the microswitch could have caused the arcing or will the arcing also have damaged the switch? I'm just trying to work out what if anything I can do to prevent this from happening again.

 

[rickgburton]

They just get worn from use. It will go out again if it's not replaced.

 

[freya105]

Thanks - I opened up the old microswitch and it is in a bad way - lots of black from burning. Obviously the source of the connector problem. It looks like it is just poorly made. Amazing that a $3 part for most people would have meant buying a new microwave. Without sites like this I would have just thrown it away.

 

[Jake]

Rick? Is this the micro switch for that Panasonic model:
Micro Switch A61425180AP Order now for same day shipping. 365 day return policy. RepairClinic.com


Jake

 

[freya105]

I believe it is this one:
Interlock Switch AMI2033 Order now for same day shipping. 365 day return policy. RepairClinic.com

 

[freya105]

If anyone is interested ... this is what a burnt out microswitch looks like ...

 

[Jake]

Ok, sounds good, that's for the update, that will help others in case they have this issue as well.

Jake