Thank you in advance for all of your kind help.

We bought our house 3 years ago and I'm pretty sure all the kitchen appliances, including the dishwasher were put in at most a couple of years before we got it (hence the 1-5 years age).

We've had no problems with it until recently. A few months ago, I had one incident where it wouldn't drain. I scooped the water out from the bottom and cleaned things up. Didn't find a major clog, but ran it again and it drained. Didn't think much of it.

Now tonight, it happened again, and this time it won't go away. I have taken the bottom apart as shown in this video (https://www.youtube.com/watch?v=ZcP8x2x_vAo) and cleaned everything, but again, no major signs of the cause of the blockage. The check ball is there and not stuck. I also use baking soda, vinegar, and boiling water to try and clear a blockage, but no luck. The thing I don't get is in that video, I don't think it shows me how to get at the drain pump or valve, to see if they're ok. Any idea on how to do that? Are they underneath?

When I run the dishwasher, I can hold the drain tube in my hand and feel that there is indeed water going through (although I don't know if there is enough going through, since I've never felt it before). I do hear the drain pump at least *trying* to run and it makes a bit of a whirring sound which, to be honest, I can't recall if it's always made that sound or not. When it makes that sound, I do feel water going through the drain pipe, but again, perhaps not enough.

I'm not a naturally handy person, but willing to explore/learn. Is this something that needs a professional at this point or is there more I could look at? Thanks!

That did it, thank you for your help! I was surprised that it worked afterward, because to be honest I didn't notice any large amounts of debris in the drain-hose, but after running a small snake-tool that I had (and feeling almost no resistance), the washer runs fine!

Thanks again!