I am not getting water to my icemaker but am getting water through the door. I removed the water filter and checked for any clogged lines. Then I replaced the dual fill valve. Still no water to the icemaker. The optical sensor appeared to be giving the correct indications that it is working properly based on what I have seen on other posts regarding how to check if it is operating correctly. I am thinking my next step is replacing the icemaker itself....can someone please confirm that this is a logical next step??? Perhaps I am overlooking some other simple troubleshooting I could perform first. Thanks in advance for any tips/help/assistance.

Thanks for the advice but when I replaced the fill valve, I made an effort to check my lines. I disconnected the tubing at the back of the fridge and poured a small amount of water into the tube and I was able to blow it all the way into the tray. I have gone ahead and ordered a new icemaker (from this site) and if that doesn't do the job, I'll certainly swap out those connectors. Thank you.