Hello,
I installed a brand new Gen2 at our home today and one thing struck me odd during the installation. The AC transformer makes a constant buzzing sound like some old piece of electronics. Is that normal? It is in our garage so it isn’t something we have to listen to all the time, but I do spend a good amount of time working on things in the garage and prefer not to listen to it.
Thanks in advance!
Hey @scorp508-
Not normal! If you would contact support and reference this post, they will get you sorted out! Sending a pic of the adaptor may expedite the process…
McKynzee 
Thanks @mckynzee. I sent mail to support this morning and they’re all over it and sending out a new one. 
They rock. Glad they got you covered!
The replacement transformer arrived today and is perfectly silent. 
Props to the support folks for a speedy turnaround!
Hi, I just installed my Gen2 16 Zone controller. What an awesome device! I’m having exactly the same issue, the power transformer is buzzing like crazy. V/r Rick
@RickRDJ - then send an email to support@rachio.com and I bet they’ll get a replacement power supply out to you PDQ.
Hey Rick. Glad you’re excited about your new Rachio! As with our friends above, please contact Rachio Support at your earliest convenience (1-844-4-RACHIO) and we’ll gladly set you up with a new power adapter.
Mitchell,
Thanks, is there an email address? We’re out in the country with no cell coverage in this new house. I can call from next Monday, but would certainly like to get one on the way. V/r Rick
Hey Richard,
Yup! Looks like @DLane beat me to it ;)!
At the bottom of this page: http://support.rachio.com/article/103-contact-support#
You should see the Still need help? Contact Us link with a form for you to submit. Once we’ve received your email will get the ball rolling.
All,
Awesome, email sent with details and address. Already got the auto conformation. Thanks! Rick
I still have my buzzy unit if anyone wants to do a manufacturing investigation now that more than one have been reported.
Just installed my new 16 zone fresh from Amazon, the transformer sounds like angry bees. I filed a case with support but honestly I worry how many of these are out there locked away in some utility closet about to burn down someones house.
I recently noticed this on my 8 zone gen2 as well. I unplugged it for now due to safety concerns but need a replacement.
@the_paper_pusher - I think a call into Rachio support or submitting a ticket will be the fastest way to get a RMA unit as many of the responders (like me) here on the board are end users and not Rachio employees.