photocell

I have been having problems with intermittent ignition issues with this burner. It runs but no ignition. I have done some maintenance, cleaned out the boiler chamber and plates, fan and casing cleaned, burner tube cleaned, nozzle filter cleaned, all is running ok, apart from ignition. I read...

I have a faulty photocell on my boiler, my plumber friend told me to clean it when the boiler struggles to fire. It has gotten to the point today now where that no longer works. The lens has been diming for some time now, cleaning it no longer gets the boiler firing again. I have a spare one...

At the health club I go to (the same one with the odd looking IP CAM), outside the main entrance what backs on to a main road, there is this electrical mess. I am wondering if it is still live and being used to turn on the surrounding bollard/sign lights at dusk, or whether it has been left...

I swear there was a option where you could see what threads a media item (i.e. a photo) occurs in, but I can not find any such option? Am I blind or was this feature removed, and if so why?

I'm wondering if anyone can help me source or create a photo cell reverse switch. I'm trying to light a dark room in the day which is for reptiles, natural light cycles are required for better breeding season's and at moment I'm using timers. These are a pain as needing changing repeatedly and...