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Electric furnace makes loud noise like a breaker when it starts??

7K views 5 replies 3 participants last post by  hennyh 
#1 ·
Can you help me figure out why my electric furnace in a new home (3 years) makes a very loud clicking/banging sounds, much like that of a breaker being switched, every time it turns on and off. It functions fine and heats the house without problem, but I'm concerned about this loud sound. Any thoughts?
 
#6 ·
It sounds like a loud relay but some of these air handlers have a cover over the control panel that tends to amplify noise. My air handler had a LV transformer hum but it was much worse with the cover over the control panel. I modified the cover to dampen out the vibration.
 
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