For some reason I doubt that a little $20 unit detector will be accurate, tell me if I'm wrong. Can I call the fire department to have them test it? Idk what to do.. I've had headaches ever since we started using the gas heat.
By your theory, lightning shouldn't strike the house with the lightning rod because that house has been draining it's electrical charge off into the air above it. If your theory held, then towers would never get struck. In reality, lightning is attracted to higher objects over lower ones and pointy objects over flat ones of the same height. Whether the aluminum cable can safely carry the current is immaterial. Who cares if the lightning rod gets ruined by getting hit. Who cares if the aluminum cable isn't rated for the amperage. We are not talking about a steady load. We are talking about a load that is very transient and seldom has time to generate a bunch of heat in the conductor. Still, if the cable melts, that is much better than had the bolt struck the house and been transmitted by the plumbing, electrical wiring or people in the house. The voltage and amperage ranges I found for a lightning strike were 1 million to 100 million volts and 1 thousand to 300 thousand amps. An aluminum cable with a radius of 1 cm and a length of 20 meters has a resistance of .00333 ohms. The power lost due to resistance would range from: 3330 Watts to 90000 times that or close to 300,000,000 watts. What do those numbers mean? Well, the aluminum cable would have very little problem dissipating the heat from the smaller strike and would never be able to avoid melting under the large strike. However, again, this doesn't matter. Molten aluminum still conducts. The aluminum will be there long enough to conduct the lightning to ground and thus save damage to the structure.
Most and fill out the free registration and look under repairs for step by step instructions.
It is more than likely the switch. The fan motor uses a different input for low speed. You have a bad motor or switch. I was totally wrong the resistor is next to the blower motor not in it.
