This one is about a diagnosis and repair of a residential gas furnace that the fan failed to come on. The diagnosis was not simple because there was an indication that the fan motor may have been subjected to 2 speed wires being energized at the same time. This would result in the motor burning up. This video is part of the heating and cooling series of training videos made to accompany my websites: www.graycoolingman.com and www.grayfurnaceman.com to pass on what I have learned in many years of service and repair. If you have suggestions or comments they are welcome.
If you are a homeowner looking to repair your own appliance, understand that the voltages can be lethal, the fuels are highly flammable and high pressures are used. Know your limits.