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Hello my name is ***** ***** will be my pleasure to assist you. If you put the fan switch in the on position does the main blower come on? the buzzing sound you hear is probably the transformer.
If you look in the lower blower door of the furnace there may be an led light that is blinking. count the number of blinks if there is and get back to me with the number.
there may be a peep hole that you can look through to see the led light.