I haven't seen this in specific. The easiest thing to look at first would be the damper. If the one handling Yellow has crapped out on you, it could cause this. If the dampers haven't been replaced, or not for some time, then it's likely beneficial to replace them all anyway, just on general principles. It's a pretty easy change, low risk, and not that expensive. Do use the Epson OEM dampers, if you go this route. The cheap Chinese knock-off dampers I've tried have all been horrific mistakes.
If it's not the damper itself, and it's only the Yellow channel doing this, then it seems next most likely it may be something in the Yellow feed. Either the line or the cartridge seal perhaps has a kink, blockage or air gap, and the feed can't deliver ink. The cartridge itself could be at fault, if you didn't try a different one to rule that out already.