The saga of this fridge continued. Chipping this frost away just kept providing a temporary fix. So I changed the one last thing I could change, the freezer thermistor sensor. That worked for 3 days. I got a thermometer for my fridge, within 3 days it was chilling at just over 20 degrees. I called another repair company. The guy looked at everything and said I had pretty much done everything he could think of. I mentioned freon – he said usually a lack of freon would mean it would be too warm. But I mentioned reading about it on this forum (meaning here) – so for another 40 bucks he measured my freon levels.
Turns out my fridge had WAY too much freon in it. Him and his boss he was speaking to on the phone were surprised my compressor hadn’t blown up. Anyways, he released a bunch of freon out the window so it’s at the right pressure now. If that doesn’t work, it’s going to be a new fridge. Found one at Costco, same size, but GE and it’s $829. I wasn’t planning on getting an LG or a Samsung, or another Whirlpool – but the repair guy said stay far away from LG and Samsung.