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How to change the bulb on a Panasonic Microwave NN A770S Not as easy as it sounds

The internal bulb has blown but there is no hatch to get at it. It looks like the whole casing has to come off! Any guidance?!

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Re: How to change the bulb on a Panasonic Microwave NN...

You are probably right.

Manufacturers used to include access panels in the rear or side so you could easily change the bulb. That exposed the customer to 110V connectors, and that posed a real liability threat, so they stopped using them.

You now must generally remove the outer cover to replace the bulb.

In many over-the-range models, that can mean having to take the oven down from the wall! For safety's sake, that should be a two-person job and it's really helpful if you have your original installation instructions to do this.

Many models use one halogen lamp to illuminate the cooktop and another to illuminate the cavity. You must not touch them with your bare skin as the oils will shorten the bulb life.

You can find parts or a servicer here:

You should be able to find your owner's manual here:

We're happy to help and we appreciate your thoughtful rating of our answer.

Posted on Dec 06, 2007

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