Dani K Novato , CA August 06, 2020 Appliance: Whirlpool Microwave WMH53520CB0 Whirlpool Microwave Wmh53520cb0: Filters needed replacing. How to replace Charcoal Filter. Ordered the filters I needed online. Then I watched the videos that were offered on the product pages. They were very easy to follow and perform. When the filters arrived, I was able to replace all three within about 15 minutes. Great videos. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes