How to Troubleshoot & Replace Whirlpool AP4299859 / W10113040A Grease Filter

Ordered replacement grill. First replacement was damaged/cracked; another replacement was quickly shipped and was undamaged and snapped into place like the original. Also ordered replacement charcoal filters which appeared to be same size and fit in microwave base without a problem. 

Installed replacement parts. No tools required. 

I found the Appliance PartsPros.com website. All of the info I needed to determine the filter part was readily available. I was able to purchase an OEM part at a really good price with a very reasonable shipping and handling fee. The part arrived 2 days as promised upon ordering. It was exactly what I needed. No tools were required to install the filters. 

Bought filters with closest dimension (6x12) because the filter for my microwave model discontinued. 

The exact size and fit with quick shipping! 

I followed a very helpful video I found on you tube and made a few modifications as needed. https://www.youtube.com/watch?v=4aS4fen2iDY 

Ordered new filters. 

I sumply replaced it 

Just replaced the old greasy filters and put these new ones. They matched perfectly. The tool that matces the fit based on the model number was accurate 

Ordered parts and easy install of bulb and filters Appliancepartspros.com were great they helped me find the right part on a Sunday night