No Power at Doorbell

I have the pro doorbell, powered off the official Ring transformer. About a week ago it just stopped working. I confirmed 120VAC on the primary leads, but there is zero output from the transformer on the secondary and obviously no power to the doorbell itself.

So I ordered a replacement transformer from Ring, and i’m still having the same problem. 120 V confirmed, but no power coming out. If it helps at all, the resistance on the primary side of the first unit is about 21 OHMs, haven’t checked the new one. So not sure how to proceed…seems like it has to be the transformer? Is there anything I’m missing that it could be, other than the first transformer failing and the second being bad out of the box?

Also wondering if the doorbell unit itself developed a short and is killing the transformers. Anyone know how to test the doorbell itself with a multi?

Hey @TheDyers! You’ve covered just about everything I’d recommend and more. Thank you for including the OHMs to show resistance, in which there does not sound to be a lot of. The Pro Power Kit should also be installed (depending on region) between the Doorbell Pro and transformer, whether it is to include the chime kit, or bypass it.

The length of wire run and gauge of the wire can also determine resistance and flow of voltage to your Video Doorbell Pro. Check out this Hardwiring Guide for some main variables I check when installing a Doorbell Pro.

As you’ve worked with our support team for a transformer replacement, they can certainly help with a more in-depth look at this, if needed. Please give our support team a call at one of the numbers available here. We’re taking additional steps to protect our team and help reduce the spread of COVID-19, so this has resulted in longer than normal wait times. If you are outside of the US, please read our response to COVID-19 here to see how to contact support.

Thanks Marley. The way i have this set up is a very short trip from the transformer to the Ring Pro, like just a matter of about three feet. Using 18 gauge wire, so i don’t think resistance is the issue.

You mention an interesting thing - per the instructions, the Power Pro kit is not needed with the pro unless one is using a wired, traditional chime. Is that not correct?

Also, if the kit is in fact required, I’m thinking the Ring Pro itself may have bitten the dust. Is there any way to check functionality of that using a multi?

Note that I’d call, but the hold times are so extreme that i really can’t step away from my job for the hour it will take to get someone :confused: so really hoping to get some more insight here. Thanks!

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Thanks for confirming those details, @TheDyers, sorry to hear about the long hold times.

Great question on the Pro Power Kit. Indeed this is usually required when an existing chime kit is wired in series, but also is needed if you are using a direct to transformer run. There are power solutions, such as the Plug-In Adapter, that does not require a Pro Power Kit, but in most other instances the Pro Power Kit will likely need to be wired in bypass mode.

I’ve included an article below, with information on installing the PPK as a bypass. While the illustrations will show a chime kit, there does not necessarily need to be one for the same wiring configuration to be obtained.

I’d agree that once all installation factors are checked, you’ve certainly providing more than adequate power for this device to at least power up. If there is still not response from the device, there could definitely be something more going on here. While it seems like a simple and obvious step, removing the wires from the back of the Doorbell Pro leads, checking for no corrosion or debris, and then securely re-fastening them into place can help with power connection.

Feel free to check back here, or around the Community, to see if other neighbors have shared any steps we may have not tried. If absolutely nothing is working to resolve it, the best resolution will come from our support team. Despite there potentially being a wait, you are welcome to reference this post to the support team for a quicker handling of this concern.

Thanks @Marley_Ring , Is there any way to check the Ring Pro itself for a possible short? Like would we expect to see any resistance across the terminals, and if so about how much? At this point I’ve confirmed everything is just fine up to the bell itself, but I’m reluctant to connect without confirming that the Ring Pro isn’t the root of the problem.

Wanted to provide an update for posterity’s sake, as this has been a nightmare. Long story short, the problem was the doorbell all along, as i was insisting, and I wound up having to buy everything new again, our of pocket, because I never was able to get anyone to acknowledge the issue. They all were just certain i only needed to add the Pro Power Kit, which did nothing and in fact the instructions specifically say not to use if it’s a direct transformer to doorbell setup. So, due to the lack of support options, incorrect information, and a faulty product, in the end I’m out over $400 and who knows how many hours of my time.

Here’s the longer version of what I went through for anyone down the road who might be facing a similar issue, or just debating whether or not to buy a Ring:

I own a 100 year-old tudor-style home with no doorbell of any kind, so when Ring came along I was an early adopter.

I first had a rechargeable unit with a wifi chime, which never captured much more than people walking away. I was told by a friend who happens to be a professor of computer science specializing in WiFi technology that the problem was inherent in the rechargeable design, and that the only way to eliminate that lag issue is to wire it directly.

So, I happily spent the $169 dollars or whatever on a Pro unit and new chime to go with it. I also spent the money on a branded Ring transformer, because the documentation made it clear the Ring Pro needed more current than a typical doorbell.

The unit worked fine for months, then quit working abruptly. I was able to quickly determine that there was no voltage at the load side of the transformer, so ordered a new one. The new transformer worked until I connected it to the Ring Pro doorbell unit, at which time it immediately failed. Note that’s now two blown transformers.

I called your customer service line and was informed that the wait would be something like 45 minutes. Well they weren’t lying, it was well over an hour! I explained the whole situation and the customer service rep said that I must have just gotten a bad second unit and encouraged me to return it and order another. I explained that didn’t make a lot of sense to me, and I was fairly certain the problem was the Ring Pro Doorbell itself. He said no, probably just a bad transformer. He mentioned any 16-24V transformer should work.

I went on Amazon and bought another transformer, non-Ring branded this time, but of appropriate voltage. Predictably, it blew the moment it was connected to the doorbell. I knew this would happen, and had tried to explain that. So that’s now 3 blown transformers, the first working fine as configured for nearly year, and two blowing as soon as they connected to the Ring Pro doorbell. At this point there is little doubt the doorbell is shorted.

I tried calling customer service several times over the next few days, always getting that same message that it would be “45 minutes or more.” Now, as I would assume of nearly all your customers, I have a busy job. So I can’t really hang out on hold forever hoping someone takes my call and can actually help me this time. I did wait once - again over an hour, and the call was ultimately disconnected.

At this point I’ve spent many hours and hundreds of dollars on this, and I’m both frustrated and desperate for help to simply confirm the doorbell was bad and get a replacement out. I’m going online, asking wherever Ring doorbells are being discussed, and somewhere in the midst of this I started trying to get answers here in the Ring Community forums. Here I quickly learned that experiencing multiple blown transformers was a relatively common problem, and wound up in two separate message threads. I asked multiple times “how can I test the Ring Pro with a multimeter” and never got an answer. In this thread I was mentioned that in some parts of the world the Pro Power Kit is recommended, even when no external chime is present.

This begins the mystery of the Pro Power Kit, i.e., what is it, and what does it actually do? And is it required if you have no chime? The documentation all states that it “ensures that enough power gets sent to the Ring Video Doorbell Pro.” This would imply that it’s some sort of voltage regulator able to apply additional energy as needed to offset any parasitic loss to the chime, I’m guessing it’s just a capacitor or something. Note that nowhere in the installation does it say it’s required if you have no chime, and during the installation process the app very specifically states the opposite: "If you’re wiring directly to a transformer or a Ring Plug-in Adapter, you don’t need the Pro Power Ki t."

The function and purpose of the Pro Power Kit aside, I was now completely stuck. I had set the doorbell up exactly as I was told to do, and it clearly has shorted out killing three transformers, one of which I was told to by Ring’s customer service team, and I needed someone to help me return it all for working units.

At this point I made a snarky comment on Ring’s Instagram feed that led to someone encouraging me to reach out to them for support. Heartened by this I took them up on it. I won’t go into the details, but long story short that too was a complete waste of time as they refused to acknowledge the obvious fact that the doorbell was shorted, insisting the problem was just the absence of the Pro Power Kit and that I was wrong to think anything else. This was not only frustrating, but infuriating, and represented another hour of my time wasted.

At my wit’s end, I bought everything new again, on my own dime, so I could physically record the setting up of everything as that Instagram person had told me to do, knowing full well what would happen, and share it with Ring in the hopes i could get someone to finally understand the problem and care enough to help. So, actually laughing at myself as i did it, i recorded myself (with the help of my 11 year old daughter):

    1. Adding the pro power kit to one leg of the power supply as instructed and (of 
      course) it didn’t work.
    2. Replacing the transformer, again confirming that I had power, again using
    the Pro Power Kit, despite nothing telling me it’s necessary.  Then I connected it to the 
     original Ring Pro at which time the transformer shorts out, exactly as I knew it would.
    3. Finally, I replaced the faulty Ring Pro with the new one I bought out of pocket, which 
    honestly anyone could see was the problem since step 6, and it’s all fine now.

Interestingly, when going through the set up again, I came to the step in the attached screenshot where it very plainly states “ if you’re wiring directly to a transformer…you don’t need the Pro Power Kit.” Well gosh, look at that. I did share that with the Ring rep on Instagram who’d insisted that i’d not followed directions with the Pro Power kit, and they have not responded. Nice.

I still don’t know what that Power Kit really does - and t’s possible it does protect from voltage spikes like a resistor, rather than supplying constant current as stated, and that the doorbell failed in its absence. And it’s possible that the directions are incorrect when they state it’s not needed. I don’t believe that to be true, but it’s possible. Regardless, I followed the directions, the Ring Pro failed in a matter of months, and I’m out hundreds of dollars and countless hours rectifying it because Ring has no real product support. Not a great experience, and one I"ll do my best to share as broadly as I’m able - it’s all been pretty appalling really.

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