Fug dat! Make a house and write da entire family vacation off as a bidness trip. No need to thank me just be sure to provide ‘toe with above average work.
Find the instructions for the switch and check the settings on the switch. Our porch light will do the same after a power outage on occasion. As for replacing the switch, they're all pretty much the same unless it has to be a certain look to keep you happy.
There is an always-on mode on my outdoor lights that use a proximity detector and you set it by flipping the switch off and on so maybe there is something like that involved. If only you could read the fucking manual, but I know the old man card is already ragged.
Just put a piece of black electrical tape over the window on the photocell. Change bulb to LED and let it run all the time. Done.
I figure the extra 3KWH a month won't kill the earth and the frustration is worth the extra $1/mo on his electric bill. I think he gets a good chunk of TVA hydro power, so it won't kill that much of the earth. (based on 9W 800 Lumen LED bulb - 60W equivalent) Besides, we've already killed the Earth. We are just waiting for it to die now.