40188529011 Kenmore Microwave - Instructions

The repair was very easy, however the bulb was not the same as the original one. The original bulb had a bright setting and a low setting, but the replacement bulb was only the low setting bulb. There was no bright and dim operation. The switch on the microwave had the duel settings.

Removed control panel, discharged HV capacitor. Removed old diode, tested to confirm failure. Replaced part. Other than the removal of the panel swapping the part was almost as easy as replacing a light bulb.

The high voltage tired was shorted. I replaced it with a new one, but that did not solve the problem.

You can test the high voltage tired with a voltmeter and a 9 V battery. Search Search for it on YouTube.

You can also test the high voltage capacitor, the high-voltage transformer, and the magnetron with a multi met ... Read more er. Search for the procedures on YouTube.

I tested all these high-voltage components with a low-voltage multi meter, and they all checked out OK (after replacing the diode). However the microwave still did not heat food.

When working on a microwave it is important to unplug it and also discharge the high voltage capacitor. The capacitor has a 10 megaohm resister to automatically discharge itself, but it may have failed – – so discharge it manually.

In the end I ordered a new microwave.

I removed the outer cover and exposed the inner workings. I watched a video on partselect.com to show how to remove and replace the Diode. I followed the instructions and it was very easy to replace.

Unfortunately, the diode was only part of the issue. I ended up replacing the High Voltage capacitor and Magnetron also. Those w ... Read more ere a little more complicated but still easy to do.

Now the Microwave works just like new! Cost me less than $100 for all parts.

Opened light panel and replaced bulb. Very, very easy.

I am concerned, however, that this bulb does not emit the same amount of light as the one i replaced. The item number is the same, however, so I am perplexed at this bulb efficiency.

With microwave still attached under the cabinets, I removed 2 screws for the top grill and then one screw for the bulb cover plate. This provided access to the bulb. The replacement bulb was a simple plug-in.

The best part of this experience was the exploded parts diagram on the PartsSelect web site which allowed me to easily ... Read more locate and order the correct part.

I followed the instructions in the owners' manual on how to access the bulb. Installation was a breeze. I couldn't believe how fast I received the replacement bulb from PartSelect. I ordered it on line one afternoon and Fedex delivered it to my front door before 9:00 A.M. the next day. Awesome service.

Replaced the bulb

To replace the light bulb was fast and easy. All I had to do was unscrew one screw and place the bulb in! Quick and easy, and simple!