This is an LG fridge. Suddenly the tray is not filling with enough water - only enough to fill two of the cube compartments. It was set to the default for water to run for 6.5s and before this issue that seemed to be enough to almost fill the trays. In other words, it worked well.

The length of time water runs into the cube tray is determined by a set of dip switches under the PWB cover. As part of my testing I set the switches to what should have been 8.5s but the water still runs about 6s. What's the part to replace for that - a board?

I realize that if before the default for 6.5s seemed enough to fill the tray then the dip switch issue may very well be secondary. But it's still an issue.

I assume the full is possibly related to a partially clogged water line or fill spout so I've run hot water into it.