I had to change a light bulb in my ceiling fan. When I was screwing it in, it popped and the light bulb blew. Now the remote won't turn off the light, but it's still able to control the fan blades
What can it be and how can I fix it?
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You blew part of the CPU in the ceiling for the remote? Change all the bulbs and hope that isn't it. Turning something off isn't always just for your safety.– MazuraCommented Oct 5, 2014 at 0:58
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2 Answers
It is a bit dependant on the exact internals what is the exact cause, but the most likely one is that the system to switch the light on and off uses an electronic element called a Triac. If it can also be dimmed this is very probable even.
It is potentially possible to burn out a Triac by suddenly switching on a load that's a bit over its limit. If the original engineer had foreseen this he may have made a nice circuit that turns on the Triac when the AC voltage curve is at zero, to make sure it doesn't get overloaded. By turning in the lamp you can have accidentally connected it exactly at the highest point in the AC voltage curve, or near it, causing the maximum current to flow very suddenly through a cold lamp. (Cold lamps very shortly require more current to start glowing if it's a filament or even an affordable energy saver lamp).
If this happened the Triac can stay in conduction mode "for ever", requiring repairs by someone who knows what he's doing.
But to be 100% sure some close-and-personal research would be required.
Two of the ceiling fans with lights that I've owned have an internal fuse that can blow and need replacing. It could be that your fuse blew, and not the light bulb, or that both went at the same time. Our last ceiling fan would almost always blow the fuse when a bulb went out (I'm not sure if that was normal or defective activity).
