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Not the original type bulb
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.
Initially I called a Samsung recommended appliance repair outfit to fix the latch. The technician informed me that he does not fix latches. I need to buy a full new door for the microwave for $215 plus he charges $165 to come to my house. I got angry and did some research and it turned out that this is a very common problem. I ordered part PS4229162 "door key" $6.67 then followed the instructions on a youtube video by zimsjeep "Repair a Broken Microwave Door Latch" to install. At first I struggled a bit hooking up the spring to the frame, but then I used a slim plier to hold the spring (instead of my fingers) and that did the trick.
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.
I bought the microwave on sale at Sears. the glass cooking tray was missing. It was to be ordered but after 2.5 months I had not received it so called Part Select and received the tray within 5 days! Ironically, the original one arrived the same day. I would recommend PartSelect for their prompt and very courteous service.
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 meter. 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.
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 locate and order the correct part.
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.
Microwave would continue to run even when door was open. (even if no time was left on timer)
Unplugged Microwave, Removed vent cover (2 screws on top of microwave, then slide cover to the left, then forward) Removed control panel (1 screw at top of panel) then removed the two screws that hold in the door switch assembly. (these you will only see by opening the microwave). Located lower door switch, removed connecting wires, and pulled switch by releasing small plastic tab which held it in. Put new switch in place, reconnected wires, then reconnected door switch assembly. Reconnected control panel, and then put the vent cover back on. Tested microwave and it no longer runs when the door is open. Super easy fix, and was done in under 5 minutes.
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.
Micro kept running when the door opened.......NOT GOOD
After minimum research, it was identified as a micro switch in the door. There is a total of 3, The top and bottom switches are the same in the odd one is in the middle just above the lower switch. Problem i had was one of the you tube videos said to grab the switches with pliers and force them out.;not a good idea. it breaks the lever in the switch holder bar. Solution is to remove the plastic switch holder bar from the door frame removing the 2 screws on the inside of the frame and then you can flip the lever in the bar which secures the switches on the door side. Use a small screwdriver to release the lever and they will slide right out. FYI the plastic switch holder bar is no longer available. I used electrical tape to secure my switches since the levers were broken from forcing them out.
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 were a little more complicated but still easy to do.
Now the Microwave works just like new! Cost me less than $100 for all parts.
The plastic door key (latch) broke where the spring attaches.
I took off the inner plastic frame of the door, removed the broken part, hooked the spring up to the new latch and replaced it into the proper alignment holes, and works perfectly. It was less than a 5 minute repair.
