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Posted by mm on January 4, 2007, 4:05 pm
wrote:
>
>Eric in North TX wrote:
>> > it seems as if several manufacturers designt them
>> > like that. Simply replacing the bulb requires an expensive service call.
>>
>> I have a sharp that has a bulb working only part of the time, it too
>> seems to need the case removed to get to the bulb. What are the mfgrs
>> thinking? Mine has a cover to get at the microwave element which I have
>> no business messing with, but no way to change or even tighten the
>> bulb. I have the special tools to get inside, & will when it gets
>> annoying enough. The torx bits with the hole in the center are sold.
>.
>Be very careful; if you do have to take unit apart and then reassemble
>it.
>You are dealing with a microwave a radio transmitter emitting 500 or
>more watts inside a metal box.
>Lethal voltages AND the possibility of electromagnetic radiation, so be
>careful. A microwave may appear to work OK but may be leaking around
>the edges!
>Particularly make sure that the edges of the cover around front panel
>etc. are properly meshed and reassembled as designed to prevent that
>leakage. This is important.
>Possibly that is why they are made so as to be tricky to replace lamps;
>although one would think lamps should be easily replaced inside the
>oven with the door open to make sure power is off.
It's not that. It's that if the person didn't put the cover on just
right, or omitted it which undoubtedly some woudl do, the microwaves
would escape from the cooking chamber and go everywhere. This is very
dangerous.
AIUI, microwaves will heat every water based liquid in sight. This is
especially dangerous to the aqueous and vitreos humor in one's eyes.
IOW, the things that fill our eyeballs.
BTW, today I tried to give a like-new baby carrrier/carseat to
Goodwill and the Salvation Army and a third local charitable thrift
shop, and none would take it. One guy explained that they would be
sued if one caused an injury. I have a mailing list where I can give
it away.
>If uncertain how to proceed it requires a good electronic tech. with
>possibly some experience with radio transmitters. Working voltages can
>reach/exceed 5000 volts.
No, no. Take off the trim, which is probably designed to be removed,
remove the box, take the sheet metal cover off the badk and replace
the bulb. To reassemble, reverse. Don't attempt to open the walls of
the cooking chamber.
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