MW55 - Instructions

First I read through the customer comments, reviews, questions, etc. at Parts Select, which is always a good bet. Then I put "samsung microwave door switch replacement" into youtube and watched some videos. They don't even have to be for Samsung. From what I can tell, many of the appliance companies use the same design and the same jun ... Read more k parts, so watching a GE video is almost the same for example. Watch some videos to familiarize yourself with the steps. There are maybe six to disassemble and install the new part. I replaced all three switches. They are not expensive and to replace 3 is only 5% more work than to replace just one; you have to take the microwave apart in either case. UNPLUG THE MICROWAVE FROM THE WALL. Start taking it apart. I use my phone to take a picture of any thing I remove, unscrew or disconnect, especially wires, BEFORE I disconnect them. Thee pictures serve as a reference when I go to reconnect and reassemble. If I am uncertain then I check the picture. Good luck!

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.

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 was pleased with how quickly my part arrived and that it was still in stock as the washer was quite old. I had to remove screws on back panel to get at part. only a couple of screws held the part in place and 4 wires were connected. The hardest part was pulling the part out of black hose that connected water into machine. It had be ... Read more en on so long it wouldn't pull out and part of it broke off in hose. It took some fussing to get it out and then the new part connected easily.I took one wire off at a time and put on new part as to not get them mixed up.

First I removed the front panel using the screw driver. I removed the old belt which was in the bottom of the washer. I placed the new belt on the motor and adjusted the pullies. I replaced the front panel. The washer spins much better now than it had for the past year.

I unhooked the fill lines from the washer. I unscrewed the cover plate of the water inlet valve, and pulled the valve out enough to disconnect the fill hose. I unscrewed the band clamp on the fill hose and disconnected the hose.

I took the replacement part and one by one moved the four wires from the old part to the new part t ... Read more o make sure I connected each to the proper terminal. I then reattached the fill hose and clamped it. (This was the only "hard" part since the hose has little length to work with and is inside the machine.)

After attaching the all the internal connections. I took the coverplate from the old valve and screwed it to the new valve. I screwed it all back in place. Before reconnecting the fill lines from the wall, I replaced the rubber washers in the hose (a good practice to do when re-connecting these hoses). Connected the fill lines, and voila--working washer!

Very easy and intuitive repair.

Tilted the washing machine, removed 4 hoses from the pump and the drive connector;
removed 3 nuts that hold the pump; install
the new pump and put back the hoses; to be safe, I unplugged the electric

I mistakenly thought I had to remove the microwave to get to the back, not so. I would have had access to what I needed to unscrew; but I have to admit the hassle of taking it down and putting it back equals having to work on it attached to the shelf-your call on how you do this. I unscrewed the front top to remove the vent piece that ... Read more is across the top front of the microwave. This will reveal the control panel screw. (While you have the vent removed you might want to clean the vent and the exposed filter.) carefully lift and pull out control panel. I unplugged a piece as the wires were tied tight. It will not completely detach, so carefully tip it back from exposed insides. The fuse is not clear but white with silver ends so look in upper right for it. I popped it out and replaced it. Replugged the wired part to cover and carefully fit tabs in and slide down to secre. Replace screw, replace vent piece and secure screws on top of microwave. I plugged it in to test before putting it back above my stove.

I removed the four hoses that were connected to it, then I removed the three screws holding the pump in place. Then I removed the drive adapter that was connecting the pump to the motor. I then did everything in reverse order to install the new pump and everything worked just fine. Thanks!

I replaced all 3 door switches. Once you remove the top vent then remove the panel. Then remove the two screws holding the door switches in place and pop them out and replace them. It was tricky getting around all the wires but eventually was able to get around them. Took less than 20 mins to do and was less than $40 to fix. Much better t ... Read more han having to replace our over the stove microwave.

Removed 4 small star head screws from back of microwave, lifted body off, removed blown fuse and replaced with new one (found where cord enters). This model is stainless inside and out and I like it a lot. It is also sold by Daewoo and a few other manufacturers.

After pulling the knob out ( on position) a white retainer clip was visible behind the knob. Using a paper clip bent in to a "J" shape I was able to easily remove the retainer clip and knob . The old knob had several stripped teeth that caused the problem. The new knob came with the retainer clip installed . The knob slipped on and locke ... Read more d in position.

Unplugged the unit. With a screwdriver removed two screws on the top plastic vent. This exposed the screw holding the control panel. Removed that screw to access the switches. Removed the visible connected wiring from the switches. Grabbed each switch with pliers to gentle pull them from their holders. Inserted new switches and reconnecte ... Read more d wiring, ensuring the correct orientation of switches in their holders.
Recommend replace all three switches.

Removed case,
Discharged HV capacitor and removed cooling fan.
Unscrewed ground end of HV diode and unplugged from HV capacitor.
Installed new diode by reversing the order. In my case, the problem was the magnetron was bad, so I replaced it as well.

Unplug the machine. Turn it face down. Take the back off. Take the four hoses off the pump. Unscrew the screw holding the connection to the motor and carefully slide the brace off without bending it. Remove the 3 screws holding the pump on. Take the old pump out. Screw the 3 screws back on. Attach the drive mechanism with the clam ... Read more p carefully being sure to even it out under the clamp as you tighten it. Reattach the hoses. One of my hoses leaked after wards so I had to trim a half inch off to get a better grab on the pump. Put the back on and stand her up. Plug it in and test her out.