GM Volt Forum banner

240v charger was buzzing like a transformer...

4386 Views 10 Replies 10 Participants Last post by  canehdian
Went out to my garage and heard a buzzing sound coming from my Sun Country (Clipper Creek) 240v charger. It sounded very much like a transformer buzz you hear from a large transformer, not real loud but loud enough to hear it in the hallway beside the attached garage. I unplugged the charger from the car, waited a few seconds, plugged the charger back into the car and all is normal again.

Has anyone else experienced this and could this be a sign of imminent failure? The charger is about 3 years old and is used daily. I guess time will tell but I have never heard any sounds from the unit other than when the relay operates to start the high voltage charging.
1 - 1 of 11 Posts
I have a aerovironment l2 unit that I bought when I had my Leaf. It has done the buzz a time or two, but usually it goes away. I think it's just the coil in the contactor. As long as it makes juice, I don't care. Can't hear it from the tavern!
1 - 1 of 11 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.