I travel a lot and when I get back home it smells musty because it is shut up. I have what is called a 'summer switch' on the heating system that lets the fan run without the heater going on. It is a simple on-off toggle switch that turns the fan on and off, bypassing the heater.
So I came up with an idea to fix a timer switch instead of the toggle switch, and let it turn on and off automatically a few times a day.
I expected 110V but found that the ‘summer switch’ wires were only carrying AC 25V. But I fixed the programmable timer anyway and it runs fine. The house smells clean all the time now and the switch is not malfunctioning or over heating or any thing.
Here is question:
The switch I put in is designed to operate in a 110V circuit. Here, I have put it in a 25V circuit.
Can you tell me how these things work? And if I am doing something dangerous?