I ended up contacting the company and was told they had a batch that went out that had this issue and are sending out a replacement control to those having a defective incubator. It was an easy plug-and-play repair.
Well that incubator went glitchy again and wouldn't reset so I ended up calling the company. Excellent customer service, by the way!
They are aware of the issue and said the flashing "188.8°" is equivalent to a check engine light, that it indicates one of the internal wires in the controller...
Thanks, it's all good now. Weird though, that it would take over two hours for the display to suddenly start working. Just hope it stays working and doesn't go wonky once eggs are going.
I bought an LG Deluxe incubator last year and it worked fine. After the last hatch, I cleaned it up, as always, and stored it in the cabinet (room temp) for the winter. I got it out today and plugged it in and the temp automatically began flashing 188.8 °F °C.
The control buttons are...