Question about Daewoo KOC-925T Microwave Oven

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Light bulb changing

I have been a mechanical electrical engineer for just under 30 years and am blowed if I CAN FIND A WAY TO GET IT OUT I think it is on the control panel side but when i remove the small fibreglass panel I can feel the bulb on what is like a chute no way will it turn,push in or anything else.Seems mad where it is but you can just get a finger and thumb upto it.

Any ideas?

Yours

ERCADRAH

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  • 8,820 Answers

That mica panel is the waveguide cover, and what you're feeling in there is the magnetron antenna.

If there's no other removable cover inside the cooking cavity, (and the owner's manual doesn't address it) some disassembly may be required.

Always unplug a microwave before removing or installing any bulbs.

If it's an over the range type, remove the vent grille across the top and see if bulbs can be accessed there. There may be a panel on the bottom covering the light(s), instead.

If not, chances are you'll have to remove it from the wall, then remove the outer cover. If so, the installation instructions are very handy, and it's best to have two people since the microwave can be heavy and awkward.

Once it's out of the wall, the outer cover (wrapper) will need to be removed, just as you'll need to do on a counter top model.

The screws you need to remove should be pretty obvious, and a special driver (such as a T20H Torx type or GTXH20-100) may be needed.

Be sure to put all the screws back in the right holes, since some may be special grounding screws.

Bulbs can be had in most grocery stores, hardware stores, home improvement centers, and big box or department stores.

Many models use halogen lamps. You must not touch the new one with your bare skin, as the oils will shorten the bulb life.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

Posted on Aug 18, 2008

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We see and repair this a lot. The problem is on the control board, which we regularly repair for $39.95 nationwide.


This light failure often occurs when a bulb goes out and the filament shorts, or when the bulbs are removed or installed without first unplugging the oven from the power line. Either can cause such a failure on the controller.

The lights can can be inoperable or stuck on or stuck in "night light" mode. Sometimes this will similarly affect the fan operation or inside light, too.


We'd also recommend buying top-quality bulbs.


They can blow if subjected to vibration such as door slamming or a weak floor, or electrical fluctuation, especially if they are cheap bulbs or they are left on all night.


Instead of having the board repaired, you can order a new control circuit board / smart board if that's economical, and since your sockets are bad, they will need to be replaced, too.


You can find links to helpful exploded view diagrams and part ordering help here. I recommend that you bookmark that link to your

favorites.


There's a YouTube video available showing how to remove a typical over the range control panel assembly in under 5 minutes.


If you're changing the board yourself, you'll need to detach the keypad connector:

40716d4.jpg

Some connectors will have a lock.

positivelock.jpg

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

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If your model is NN-P295SF, then the service manual is here.

This light failure often occurs when a bulb goes out and the filament shorts, or when the bulbs are removed or installed without first unplugging the oven from the power line.

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