How to Troubleshoot & Replace Lg AP5202555 / MDX61912701 Grille,Vent

We did not know there was an additional filter INSIDE our microwave. We have been changing the one on the bottom but wondering why our walls were getting greasy and the fire alarm would go off every time we would broil. The Microwave would filter through the smoke from cooking. So one day Hubby decided to pull off the grille well all the clips broke when he did it. But we ended up finding out that there was another filter inside of it. AppliancePartsPros have been My savior. I have been able to come to this site and replace the parts I need rather than call a repair person who never brings the part even if I tell them what I need then they have to come again and charge me for 2 trips. So we bought the filter then went to put the grille back on and realized all the clips were gone so AppliancePartsPros came through for both THANKS 

Ordered a new part and changed it out. 

Removed broken grill vent by sliding to the left. Replaced with new grill by lining up the tabs into the slots and sliding to the right. 

Replaced the vent cover - took about 2 minutes, we can use our microwave again 

I first checked the internet for the parts needed. Many sites were very difficult to identify the parts needed. The site “appliance parts pros.com made identifying very easy. I ordered the part and received it the next day. It was very easy to install. 

ORDERED NEW PARTS 

Entered in Model number on your site and it came up with the part. Even though the description didn't mention the brand and model number on the description it did fit perfectly. 

Replaced vent 

Simple replacement. Part came in the next day with standard shipping. 

Parts were easy to find and at a price I could live with. Easy check out and fast shipping. the part was easy to install and the job was done on 10 minutes.