First of all, thank you for your patience. This forum/site has proved to be very useful in my endeavor of getting my fridge fixed, and I hope it will help me a bit more.
The problem: My LG fridge stopped cooling. It has been going on for some time (months?) but my solution was always to unplug the unit, then plug it back in and viola, cold air. The pull out freezer has worked great through all of it though. Finally this weekend the solution didn't work, so I called out a tech today. He said pretty quickly that the PCB board needed to be replaced, but did not pull out his multimeter or infrared thermometer. Just kind of felt around for air flow, checked the door switches, and turned the unit off/on. He did mention an excess of frost built up in the freezer.
However, the unit continued to work normally again as I left the house, so I'm skeptical as to whether the board actually needs to be replaced. I read the 'warm fridge fire drill' and also the FAQ's, so I'm thinking that I need to clean the bottom of the unit and possibly defrost the unit. Thoughts?
I went ahead and ordered the PCB just in case. The installation seems straight forward, but can I do this myself? If so, any tips/tricks or advice? The technician warned against this, stating that he may need to program it. I'm not totally convinced that's the case though.
Any advice on how next to proceed would be grateful. Thanks in advance.