Samsung DW80F600UTS Smart Auto/Heavy lights flashing

[rbt2u]

Hi, I have a Samsung DW80F600UTS flashing the code of Smart Auto and Heavy lights. From what I can tell this is a blocked drainage issue. I removed the cover and found that a straw from a baby bottle had made it’s way down to the grinding blade (which snapped). I ordered and installed the new blade. Turn on and it worked fine for roughly 3 washes and starts flashing again. Took apart again and found that the screen was actually about 40% plugged on the underside. Cleaned that and reassembled. Works fine again for 3-4 washes and then will stop and flash the code again. I don’t think it’s the board since the machine would likely not work at all if that was bad. Any ideas on what could be the issue? Any input would be greatly appreciated. Thanks