How to Troubleshoot & Replace Whirlpool AP6284471 / W11133712 Circulation Pump Motor

I watched a DIY YouTube video and installed the part. 

Replaced pump. 

Removed dishwasher to access pump motor in back. Disconnected wiring to old motor. Loosened hose clamps to motor. Removed motor and replaced with new. Tightened clamps and attached wires. Installed dishwasher. Very easy, did not take very long. 

Tried to analyze service codes but no luck. Checked voltage going to pump during cycle and it seemed good, so ruled out control board. Ordered new pump and replaced with help of YouTube video. New pump did the trick. 

Replaced with a new one. That was definitely the issue. 

I started a cycle with no dishes and realized that although I could hear the pump running, no water was being pumped through the middle or upper arms. There were no cracks or obvious leaks in the line that ran to them, so I figured it had to be the pump. The actual problem with the pump is that the impeller was stripped, so the pump ran when it was supposed to but wasn't spinning the impeller. Probably could have fixed it with some JB Weld, but figured I'd just get the new pump as this thing has seen daily use for several years. Replaced the pump with very few issues. It was a bit difficult putting the new pump into place in the rubber grommet, and you DO NEED a pair of pinch clamp pliers to use the clamps that come with it. 

Replaced circulation pump and motor. 

Replaced the pump 

Thanks APP.com! Asked a question on the forum about my problem, your tech answered that it probably was the motor seized, and while the motor hadn't seized, it would still spin, it had indeed burned, apparently. Your price was competitive, you return policy better than others, and your shipping fast. I installed it last night, it took about an hour and a half, and while I wouldn't say it was super easy, I got it in and it's working. (fingers crossed!) Thanks again. Hopefully it will work for longer than a year and a half like the original one. 

I ordered a new pump from Appliance Parts Pros. I did not authorize special shipping but received the part next day, installed it and began washing dishes, which is doing a good job again and was only out of the use of the dishwasher one day