MV1648AD (CWHELGA) LG Microwave - Instructions

Unplug the unit before servicing. Need phillips screwdriver. Open door. Use step ladder to access and remove 2 small screws from top of the room air diffuser at top of unit. Slide diffuser slightly to the left to align the diffuser's plastic tab on the left side to rotate toward you. (The wires for the front control panel are at the far l ... Read more eft side of this difuser, but difuser is slotted for easy removal). Once the difuser is removed you will see 1 screw at the top that secures the pannel cover on the left side of the unit. Remove screw and slide this panel slightly up and out. This exposes the plastic frame that holds the upper and lower door switches. To locate the door switches and observe how they work, close and open the door and watch the door (bayonets) open and close the micro switches. Do the (red) buttons on top of the switches move up and down when the door bayonets push and release? If the buttons do not "pop" up when opened the switch is defective. The switch frame is secured with 2 screws. Remove screws and rotate the unit out for easy access to the micro switch(s). The internal (spring?) on my unit that is suposed to allow the red (visible) button on top of the switch to "pop" up when the door is opened was broken. Carefully pry the switch outward while being careful to lift the plastic holder-piece that holds the switch in place. Be careful, there is a small pin on the frame, so rotate the switch OUT toward you while lifting (carefully) the plastic holder-piece (you will see it on top of the switch). You can use an ohm meter to test the continuity of the switches. But if the buttons don't "pop" they are defective. Replace switch and reassemble.

The original cover was burned and actually caught on fire. Research informed me that food can splatter and stick to the cover. The particle will get hot enough to ignite the plastic cover. I ordered the cover and included the fan since it was so cheap, Replacement was super easy. Done in 10 minutes and made my wife happy. She was ready to ... Read more buy a new microwave because she thought something was wrong with ours but food splatter was the cause. Parts were less than $10 + $6 shipping. Keep the inside of the microwave clean!!

ordered on the part select web site, came quickly, order was correct

The wrong part was under $20. When I found out I had to replace the whole door for $150. I decided DYI was the way to go. I used JB weld and the door looks and works like a charm. Give plenty of time to cure all water needs to be cured out if exposed to microwaves. No problems so far.

new glass tray

Watched a couple of repair videos on Youtube by searching for the model number. Found out what to do in order not to get shocked by the powerful capacitor.
Ordered the two switches (To be sure, I could have ordered a third switch as suggested in the videos.)
Bought a tamper-proof star bit to get the cover off. Followed the dir ... Read more ections to replace the switches. - I broke the harness and had to use some super glue, but it's all good. I should have removed the harness instead of trying to get a switch out while it was still in place.
It's all back together, and the wife is happy!!

I replaced the whole component with all three switches in it even though only one switch was bad . Taking out one switch out of the holder unit would probably have damaged the unit that was holding the switches. Easy install and it works great again .

diagnosed defective 'door-shut switch' in the switch holder assembly. rather than replace switch, replaced entire locker holder assembly which made for a very simple and easy repair...not to mention very inexpensive.

Removed the upper plastic panel (4-screws) over the microwave and then lifted off the door and installed the new door. Then replaced the upper plastic panel and it was done!

Just removed and replaced by putting the new turntable and glass in, 1, 2, 3; that's it. I'm so thankful for this site because I would have had to buy a whole new microwave. Thanks a million!

Open the microwave door and look at the interior of the door. Between the door glass and the interior side of the Exterior Door Frame Cover you will see a dark brown plastic rectangle. This is the Cover Choke. Remove the Cover Choke by slightly raising its edges around its perimeter and then remove the entire Choke. You will then see the ... Read more 2 handle screws at the back side of the handle and a 3rd screw. Remove the 3 screws and handle and the interior side of the Exterior Door Frame Cover will be visible. Remove it by pushing on the plastic tabs and it will come off easily, with the glass attached to it. Remove the glass which is held by simple tabs and a holder and attached the glass to the new frame cover. Then just install the frame cover back in the reverse order.

tested all 3 of the door switche for continuity, the top switch was faulty, replaced it,for approx $4.00 and saved a $350 dollar microwave.

Not knowing which of the switches to replace I ordered all three in the assembly. Replacing the full assembly was easy, first unplug the microwave. Then remove the top cover to access the screws that hold the control panel in place and let the control panel hang. There are two screws that hold the assembly in place - remove those. I u ... Read more sed needle nose pliers to pull the wires off of the switches and immediately put the wires on to the new assembly so there was no confusion on what wire went where. Place the assembly back in position, replace the two screws to hold it in, put control panel in place and secure screws. Replace top cover and plug in.

Use a flat head screwdriver or butter knife to loosen the black frame located on the handle side of door which exposes screws that hold handle on unit. Remove screws with Phillips screwdriver, fit handle onto outside of door and tighten screws. Pop black frame back into place and you’re done.

I removed the bottom plate which had 9 screws.
than unplug 2 wires to the motor and unscrewed 2 screws, replaced the old motor with the new one and also the coupler. and so far no noise. easy fix. Thanks