Why You Can't Install a Ring Video Door Bell with a NuTone Intercom System or Musical Chime 

10/14/2019 - There is now a 3rd Video on this topic - It is probably the Video that everyone has been asking for. - Watch and see how to connect a Nest Hello WiFi Video Door Camera to a NuTone IM3303 - Here's the Link: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-t6YswmDNVyI.html

He does a nice job of explaining and teaching HOWEVER I felt like it was way too deep. All of that time I spent listening to the part about the microprocessor was completely unnecessary. I literally feel asleep in the middle of it all. Jump to about @17:05 if you want the Reader's Digest or Cliff Notes version.

Thank you so much for this in depth video. I was pulling my hair out trying to figure out why my Ring doorbell was not working. I called a couple of Electricians and they couldn’t figure it out either. Thanks again.

Great Information Thank you so much. I am a custom av installer for over 35 years and use the ring a lot. Thank you again. Jim Babcock .

Thank you for taking the time to produce this video. I’m not sure why you felt you needed to educate us on everything NuTone since I’m looking to replace my old and outdated unit with the Ring doorbell.

I must say, this video was very informative and perhaps went more in depth than many can easily comprehend. Those with NuTone intercom systems really need to listen to this, if they have a Ring doorbell. I recently had a Ring Pro video doorbell installed, which is their hardwired model. The audio and video features work fine. But the existing chime kit I have, which is a digital style and must have a microprocessor as Northside explains here, sounds absolutely horrible with the Ring Pro and is never consistent in fully executing the soundtrack of the Westminster chime . The interference with buzzing and beeping and broken chime cycle will s horrible. Ring has a long list of compatible chime kits which are both mechanical and digital. I would tend to think there are more problems with digital chime kits when having a Ring Pro doorbell, due to the electronics or involved. I believe this video addresses some of the problems I may be experiencing, but I’m not completely sure. Are there some digital systems which work flawlessly with the Ring Pro or is it best to get a mechanical chime kit, which is compatible with the Ring Pro? After initially installing theRing Pro and having these issues, Ring strongly recommended upgrading my transformer, which already met the 16-24 v requirement. My transformer measured 17 v when tested. But, that transformer was 10 amps and Ring said my issues should go away by getting a 16 v transformer with 20 or 30 amps. So, I installed a new 16v 30 amp Nu Tone C907 transformer and the chime is worse then ever. So, now Ring is suggesting a new chime kit and I would like to know what’s the best way to go; mechanical or digital? Which brand and model should be the most reliable?

Chris, I don't have a Ring or NuTone... But the video while LONG it was very informative and as a Handyman this subject is likely to come up sometime with one of my clients... so Bravo, thanks for your hard work in informing the masses.

Quite a busy comments section on this video. Thanks for this video and your patience with everyone asking. I have a Broan 63 which I’m guessing works very similarly to the NuTone models shown. It explains why I can measure voltage at the door speaker but pressing the button “shorts” it to ground for sensing purposes. So it wouldn’t provide enough power for other electronics the way it’s currently wired. I don’t plan or using a Ring or other OTS smart doorbell, but I am interested in a DIY low-budget solution such as a camera and Wifi-enabled microcontroller placed in the existing door speaker. If I insist on reusing the doorbell button wires for power but still want to activate the existing chime, I would need to think of some other technique for triggering it, such as a Wifi-enabled relay or transistor by the master system which can simulate the doorbell press that closes the sensing circuit. I’m not sure how other viewers manage to use a relay working unless they have more than 4 wires (2 doorbell, 2 speaker) running to the unit, since there probably has to be a separate wire as a doorbell “signal”.

This video saved me tons of time... just wished I would have watched it before I purchased a bunch of parts I now have to return.

Thanks! Now I can explain it to my installers.

I just installed a Ring Pro with a Nutone IM3003. This is fairly straight forward. I used a 24vac transformer I kept from and old furnace when I had a new one installed. Then I bought a 24vac relay for $8 from grainger, I took the 2 wires from the newtone that used to go to the door bell and connected them to the Normal Open NO relay contacts. Then I connected the wires from the old button and connected them to the Ring Pro. The other end of these wires from the button one went to the Transformer 24v side the other to one side of the relay coil. The other side of the relay coil went to the other 24v Transformer wire. The Ring pro includes a small white square with 2 wires coming out of it to put across a chime. Put this across the coil of the relay. In the Ring App press the gear to get to Device Settings select Doorbell Kit Settings . Set doorbell type to Mechanical.

Your clip is good details, this support for the instruction of manufacturer . I make it works as described

Thanks for putting this video together. Skip to 17:00 if you want the heart of the explanation.

THANK YOU! ! :)

I installed Ring on my Nutone intercom for about $8 worth of parts. Ring is happily powered and the NuTone rings when the Ring rings. Works great with no issues.

Presumably, replacing the outdoor intercom unit with a ring means disconnecting and or removing the wiring from the intercom base station at the base station so that the wiring is just home run to where you can connect them to 16vac or 24vac power source so the question is whether or not the gauge and insulation of the speaker and microphone wires to the outdoor station or to the doorbell is sufficient to carry low wattage 16vac or 24vac and whether or not it would meet code not whether or not the intercom board would provide the needed power. Later intercoms are wired with cat-5 cables and there is a protocol called POE that allows power to be transmitted through such cables but I don't think any of these WiFi cameras offer ports to use POE however this does mean the cat-5 cables are at least allowed to carry POE power by code. Basically only the wires would be used, the intercom would be disconnected and maybe even removed so it's just a matter of whether or not the wires are the appropriate quality and whether or not it's truly a home run wiring.

Yes I am using the he same transformer that powers the Nu-Tone. Wired like SkyBell and your diagram shows. All I did was place the power terminals across the old ding dong door bell contacts

It is working for me. The relay points are open and Nu Tone doesn’t see the connection until the relay closes.

My chime on the control panel failed, so I just bypassed it and ran wires to a traditional door chime that I mounted above. So now when they ring the Nutone doorbell it rings. I’m assuming if I can bypass that, then I can also use the transformer to wire up the ring. I was actually thinking of trying to do a pigtail on the wires from the nutone doorbell and then run to ring too to power up. That way I have both working.

Kid bought a mansion at a tax sale last year. Kills me. She has a IM 3303. She asked me this last week. As it is, the unit is doa, but the house sat empty for a few years. She said it is doing ‘something’ so I sent her your reset video and the manual for your web site. Thank you. Anyway I am the geek in the fam and I’m goin up for the holidays so I’ll be bringing my toner and VOM lol. TSA loves me 😆

I made digital chime NuTone control from video doorbell.

I am trying to set up the ring 2 pro with out a door bell. Just a 16v transformer and the Ring 2. Is it possible? Yes. I believe. I just wont hear the doorbell only notification to my phone.

Nice video-- Can I connect the Ring Pro to a separate AC power supply and use the RIng Pro Power Kit to trigger the common and front door terminals on the IA 29 NuTone chime module?

SkyBell will work with Nu-Tone Mod IM3303. Simply wire a $5.29 relay, SPDT, (you only need one set of contacts, normally open) available from Fry's, part #R14-11A10-12. Follow the directions from SkyBell for wiring and wire the relay parallel, not in series across the original doorbell contacts or sloenoid coils. Then wire the relay contacts to the Nu-tone intercom door bell contacts. It would have been too much trouble for me to run the contact wires to the intercom and I didn't want the old door bell to chime so I removed the old door bell solenoid coils from the door bell, removed the plungers and placed the relay and solenoid inside the wall with the Nu-Tone. I left the old door bell button attached to the intercom so that either the SkyBell or the door bell button wile cause Nu-tone to chime. I did wrap the coils and relay with electricians tape to prevent shorting out anything inside the Nu-tone case. Good luck. This should work with similar circuits and intercoms and perhaps Ring. I am not responsible for damage that might be caused by trying this fix.

The people who installed my Ring doorbell were unaware of the incompatibility with our Nutone NM200 with chime but somehow connected the Ring to power from the outside Nutone intercom box. When originally installed, pressing the Ring doorbell generated both the Ring sound AND the Nutone chime, but power to the doorbell AND the Ring would go off until we manually pressed the house (Nutone) doorbell again (kind of a reset). This worked for two years then failed. The same company returned and hooked up the Ring directly to the original house (mechanical doorbell) and the Ring is currently powered and the mechanical doorbell works also, and the Nutone intercom still works to-from the door. With this setup the Nutone chime doesn't work when the Ring doorbell or the house doorbell are pressed, but I don't care. However, a new problem has cropped up; that is, the Nutone chime randomly turns itself on and when it does, it chimes continuously. By pushing various buttons on the master unit, I've been able to shut it off, but only for a day or so before it returns. Now the question: To prevent this permanently, can I just remove the chime unit from the Nutone, is there another solution to prevent this, or is this a serious problem?

Thanks for this video. I am trying to get my Ring 2 (which has the battery) working correctly with my NuTone 3003 chime. When I manually bridge the two red wires from the Intercom button, the Door Chimes keep ringing until they are separated. When I connect these to the Ring, using the Diode, I have the same result. The chime just keeps ringing indefinitely, until I remove the wires from the Ring. When I connect them to the Ring without the Diode, nothing happens. Any idea what I am doing wrong? I understand that the existing wires from the NuTone chime module can not power the Ring, but for some reason, I can't even get the chime working correctly.

Just use a relay. Hook up the coil side of the relay like you would a standard "ding dong" chime. Then attach the N.O. terminals to the common and your choice of the front, rear or side terminals. I think the transformer in the main intercom box is 16vac. Make sure you match coil voltage. If you can't find a 16vac coil relay just install a SEPARATE 24vac power supply in the main intercom junction and use that to power the ring. 24vac coil relays are common. Ring door bells can handle up to 30VAC. Has to be AC. They don't operate on DC. If they did operate on DC you could just Hook the ring directly to the chime board on the intercom because it outputs DC.

Wow if only the manufactures of intercom systems would climb on board and make this easy...That being said we have a M and S system. Any wiring diagrams/ parts list to do this...Im in !

This was done 2 years ago... Is this possible now with the ring pro doorbell.? Mine is an older BROAN intercom system!

Is this process the same for a Frontpoint Door Camera for a Nutone Home Console?? Just verifying..

Could you install different chime

The unifi product triggers the nutone la52 with the digital chime time set to 3 seconds.

That was a terrific and thorough video. Thank you for the explanation albeit not the explanation I was hoping for. I am considering a ring doorbell but have a Nutone model 69 doorbell to replace. Any advice for eliminating the existing doorbell, ie: cover or plaster over the 6”x4” hole?

Can I just take the wires off the NuTone outdoor button (and put them on the Ring) and then off the circuit board inside (and move it to the transformer directly?)

Is the i28 forward compatible with the NM200?

The relay does work. The contacts are open and Nu Tone doesn’t see the relay until the the doorbell button is pushed and the contacts close.

Thanks for the video. My Nutone no longer works and we don't use Can we use wires going to the Nutone to wire into the Ring/Nest therefore the Nutone is completely disconnected and wires going to the Ring/Nest doorbell?

Is there a way to connect the Ring doorbell wired to a Broan model C305RW ?

My issue with my new Eufy and M&S intercom that when I push the button, the intercom rings for 30s continuously. Any idea why is that?

Let me ask this. Can you wire in the AC adapter to the back of the doorbell module and on one side of the wiring can you put in a control relay with the nutone wires in the NO contacts of the relay? The only concern I would have is the recharging the battery in the doorbell itself I guess.

I have a nutone scoville chime, but the house also has an intercom system built in the late 70's. Ring claims the scoville is compatible but not sure how the intercom fits in. It really isnt functional, and I don't expect it to be integrated into the ring system, just wondering if I can still power my ring gen 2 device and use the scoville chime without the intercom throwing a wrench in the works.

I have the old nutone mechanical doorbell like the one you showed on the board connected to 16V 20VA transformer, model is Edwards 592 put by previous owner (it has 8V, 16V and 24V terminals). I am planning to replace it with the same Edwards model but with 30VA since ring doorbell pro requires at least 30VA (they’re really bad about advertising the VA required!). The plan now is to connect probably 16V terminals and I am not sure if 24V is too much for the old existing nutone bell. Can I go ahead either with 16V or 24V since ring provides a power bypass kit or safer to stick to 16V 30VA please? If this does not work, the only other thing I can do is hook up the wireless chime that works with doorbell pro but I think I may have to still hook up the power bypass inside the nutone chime. Please confirm?

I just helped someone installing a Ring Pro with a Broan/Nutone C500 music chime, it has four tubes that, when hit by plungers, make sound when the chime is activated. I did a lot of research and study on my own, I wanted to share this information with everyone out there who have a similar system. However, this video is what got me started so I'm grateful for that. I'm not responsible for any damages if you choose to follow the method I described below. I'm simply providing some description of what I did and what worked for me. Your mileage may vary. If you are not family with electrical work, I suggest you either hire someone or ask someone who has experience and knowledge in this kind of work. The problem with my friend's set up is that, when hooked up everything, the chime will keep making sound without anyone pressing the Ring Pro button. Like I said, I did a lot of study and finally figured out why it it doing this. The Ring Power Kit, when installed as instructed, provides power to the Ring Pro button, the C500 itself, being a digital chime, needs 16vac power for it to work too, I believe the Ring power kit simply bridges this 16vac power to the wire that goes to the Ring Pro to power the unit. The problem is that the Ring Power Kit, when installed as instructed, not only provides power to the Ring Pro unit, it ALSO complete the circuit for the Ring Pro button, so to the chime, that button is pressed all the time. That's why it making non-stop sound. If you look at the user manual for C500, there are two methods to connect to this board, first one is using the unit as a digital chime, when the Pro power kit is connected, it complete the connection between terminals 3 (transformer) and 4 (front), which would trigger the chime to work. Since the Pro button needs power (that's provide by installing the Pro power kit), you can't bypass this connection, or else the Pro button won't get power and therefore, won't work. I'm pretty sure if I can provide a separate power source to the Pro button and not use the Pro power kit, this will solve the problem, but that's extra work to find the place to hide the transformer and run the power to the button. The solution is to use the second method described in C500's user's manual. Use the unit as a mechanical chime. In this configuration, you would connect one of the wires from the transformer to terminal 1, and connect the Pro Power Kit as described by Ring, except instead of using terminal 2 or 3, connect the white/blue wire from the Pro power kit to terminal 1. The black/brown still goes to terminal 3. This will provide power to the button. However, the C500 itself still needs power to work, the designer of C500 provided two 9v battery connectors, so find two 9v batteries and connect them to the connectors. Now the chime will work with the Ring pro button. The only other setting you might have to change is in the Ring app, there is a selection of chime type, digital or mechanical, I used digital and it worked. It was set to mechanical initially and it did not work. I believe there are several other similar chimes made by Broan/Nutone that work this way, like C501, C300, just look at the circuit board, if it is similar to the one used by C500, this method will likely work.

Does the nutone ik15wh work with ring doorbell pro?

If I understand correctly, the NuTone intercom system will not work with a Ring video doorbell, but I can still replace the entire NuTone intercom sysem with a Ring video doorbell, correct? I measured a voltage of 9.7 volts at the NuTone IS68 doorbell station when the button is pressed. Would that not be sufficient to power a Ring video doorbell? Thanks.

Great detailed information, I learned. But can I use the 16v transformer if I wire it directly to the Ring doorbell? I am installing a Wired Ring on another home and thought I might just use the transformer that I have in hand...

It is a very informative video. If I heard him right, he said the Ring Doorbell Pro cannot be powered by your current doorbell. What's weird about mine is that it powers the Ring Doorbell Pro fine and it works. The only issue I have is that the chime do not works on my existing mechanical chime. The Ring chime does work though.

NSC, I am a renter in a house built in 1975. The intercom is a M&S MU-MC3 3-Note Chime. It has since been converted over to a cheap mechanical chime. I have 4 wires at the doorbell (2 to the speaker and 2 at the push button). I can trace th 2 button wires to the 2 out of the for wires coming from the transformer. How can U test the voltage at the doorbell to confirm the conversion that was done will allow me to hook up the Ring Doorbell without any further modification. Please remember the M&S MU-MC3 3-Note Chime is not in operating at this time. I would post pics if I could. Thank you

What is the typical voltage at the doorbell switch for the Nutone IM-3303? I’m seeing 12V DC with my two 16V 30VA transformers. Edit to add: on the two transformers for the Nutone system, I'm seeing output of 18.8V and 19.1V, measured across each transformer........

Hi Northside, well I have a Teledoorbell, i guess its the same as the Nutone...my question is if i can't simply use the wires at the door (4 wires). can i use 2 of the wires and transformer and eliminate the Teledoorbell entirely....i dont need the chime or land line to ring...just want power the Ring Door Bell 2nd generation to use the transformer as its power source.

I am able to use my Ring Video by simply connecting the two wires coming from the transformer. So I guess I'm getting enough power. However my Nutone La-55 is not working. Now I know why. So am I safe with just leaving the La-55 hooked up for posterity and possibly reconnecting someday, or do I need to fear blowing it up with the Ring connected at the front door button?

hey how are you? I really enjoy your videos and use your videos as a guide to conduct maintenance work for intercom systems. I'm currently working on a old apt complex. I ran into some problems where a couple of the door entry panel circuit boards seems to be burnt and stopped working. The model I'm referring to is the Aiphone VC-26MT. I'm not sure if you mighty come across any of these. But do you think i can find a replacement or have the circuit board repaired?? Thanks

I have a 16V 10VA transformer. Just bought a Ring Pro. I debated whether I should buy a 16V 30VA transformer I saw on Amazon and install that, but the when I chatted with Ring's customer support online, they told me that the Ring Pro should work as long as my transformer is between 10VA and 30VA. I am going to give this a shot and if it doesn't work then I'll get the transformer on Amazon. I measured 19V at the doorbell with my multimeter so I believe I have enough voltage at the moment, but I am fairly certain the load of the new Ring Pro will be much higher than my current doorbell. Has anyone had any success with a 16V 10VA transformer. It seems like the guy in the video did, but the light around his doorbell button was flickering a lot before he tested his doorbell and I am guessing that his doorbell may still be having issues.

What you do is ! Make a housing for the outside door push,make it so as to allow it to swing from top so as to activate a micro switch.I made one over a year ago and works very well.Not only does the ring chime work but also my tube chime…

I figured it out!! Use 2 transformers, 1 for Ring doorbell and 1 for Nutone Chime, by using a cube relay and wiring the common from the transformer for Nutone chime to one side of normally closed contacts and the front connection of the Nutone chime to the otherside of the normally closed contacts...then take from a mechanical chime which acts as a resistor with the Ring power module that comes with the unit and connect to front door connection from the ring unit to where your ring power pack is installed with transformer power on the white wire on your ring power pack and connect to trans connection of mechanical chime, now take another wire from the mechanical chime front door connection and connect to cube relay 16v coil, don't forget your common wire for the coil from the Ring transformer!!! this energizes the coil opening the contacts, when the ring is pressed you'll notice a big voltage drop, down to 8v or so, this allows the coil to disengage briefly and closes the contacts enough to send current to the front connection of the nutone chime and it will ring just fine...if you don't want the mechanical chime just remove the plunger!! works great!!

Hi Great video ,I just bought this pro door bell and sfter finding your video found out i have nutone intercoms which im just disconnecting and taking out of my walls anyway as we are painting rooms ,nobody ever uses them house built in 75. question is..... my now doorbell is a trine mechanical 2 chime deal with the 3 connections back front transformer,only have a front door and backdoor doorbell,will this work by just hooking it up like ring says or am i going to have all the hassel like your talking about? Another stupid question im not a electrician Im a plumber lol when I test the voltage on the original doorbell do I test it at the box on my inside wall or go outside and take button off and test it at wires? one more dumb question what do I set my multimeter at to test this,I know this is a dumb question but this is how you learn... Thank you ahead of time..... and if this works by only changing out the transformer maybe ill do that if not I guess I will just get a damn blink camera and stick it on my front door lol..thanks again sorry for the long questions

10/16/2017 UPDATE: It seems that for the Ring Pro to power up correctly, you really need to have 24 Volts AC at 40 VA (watts) running to the Ring Pro. The wire gauge should be at least 18 gauge between the 24 volt transformer and the Ring Pro. If this is truly the requirement to have the Ring Pro work - the idea of bypassing the NuTone Chime Module and reusing the chime wires - connected to the NuTone Intercom Transformer and then to the Ring Pro simply WON"T WORK In these cases you have 2 choices: 1-> Buy a plug-in 24 volt 40VA transformer and run new 18 gauge wire between the transformer and the Ring Pro - or- 2-> Buy a standard Ring Door Bell and use the built-in battery to power the Ring Finally, when you calculate the power from a 24 volt 40 VA transformer you have nearly 1.75 amps of power available. If a product like the Ring Pro requires that much power to operate correctly, it's a power hog. I think Ring needs to look at redesigning it to require less power, especially since their target customer is someone who wants to replace a standard tract-home mechanical door bell. - Chris

How do I connect the battery charged ring doorbell to my intercom with doorbell? I don’t need the power connection.

Hi, can you Make a video of Ring door bell with amplified loudspeaker hooked up to it?

What about the Ring Elite? Can that be used with Nutone without losing intercom functionality and make the intercom chime when Ring Elite is pushed? I've seen very little about RIng Elite and Nutone or details of the IA28/29 voltage constants and voltage "change" when button is pressed.

2/28/2019 - We now have a new Video that explains what needs to be done to make WiFi Video Door Bells work along with your NuTone Intercom System or Electronic Door Chime - Here's a link to the new Video: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-HgpiZCPSbTA.html Chris

Hello, could you please show how to connect a video door phone to a mechanical doorbell? We have installed the the video phone and it works, but we don't know how or where to connect it so that the mechanical doorbell will ring. In other words, I would like to hear the "ding dong" all over the house. We are using a CCTV 4 wired video intercom system (TMEZON) and the only cable we have is a cat5 cable. Please help!!!! Thank you so much!!

I was able to do it, you just can’t use the factory chime anymore because it runs off DC and the smart doorbells need AC. I just use an echo to chime for me now.

No! There is something called AC relay that costs less than $10 on Amazon that you can add to it with the Ring Power Pro V2 to make it work. I got it (Nutone IM-3303) to work perfectly, using a 24V AC relay. If interested, ask and I will post a schematic diagram on how it's done. That is my story, and I'm sticking to it!

Ring will send you a powercable that you can install and then you can get a separate Ring chime to use the doorbell pro with the Nutone

This is so annoying. I installed a newer 30VA transformer and when I go to the Ring app and press Automatic Chime Detection it rings in my house. But pressing the Ring button still doesn't ring anything in the house. Is there really nothing I can do?

Great explanation but I was able to connect ring to Nu Tone intercom for less than $10. It is hard wire connected for charging and activates Nu Tone intercom tone. Reply if interested in a video to explain how.

I got the Ring 2 for Christmas. Hooked it up to my plain Jane Nutone doorbell. All the damn thing does is buzzes. Replaced my transformer for a 16 volt, 30 amp, bought a new chime just in case, nothing matters. Still buzzes. It acts like the button is being pushed and not let go. Not very happy.

To make Ring work, Is it possible to disconnect the wires to the outdoor button from the master unit and hook them up to one of the existing transformers?

I know that NuTone made a video intercom back in the early 90s, I actually found that out when I looked at one of the NuTone catalogs on your site. I do see why you can't integrate one of these in with a NuTone intercom system: because the technology is just too outdated to support a Wi-Fi enabled device, and there's no way to put in a video screen.

It makes the Nu-Tone chime.

You can connect the ring to a nutone intercom, use a 24v rib relay and have it powered off the load side of the ring doorbell then use the normally open contacts on the relay and connect to the old doorbell wires which will set it off every time the relay is powered... wasn’t that hard or expensive around 40 dollars (the nutone intercom uses 12 volts)

Is this still the case with a Ring Pro?

Are you saying that ALL digital or electronic chime systems have a microprocessor or just digital chimes from NuTone? I’m getting beeping and buzzing on my digital door chime ever since I installed the Ring Pro. I swapped out the 16 volt 10 amp transformer to a 16 volt 30 amp one and I’m still having the same problems. Are you saying Ring Pro video doorbells will only work properly with mechanical chimes? Ring states their units will work with either mechanical or digital chimes as long as they are the ones on their list of compatible chimes...

Thank you but you could have cut right to the last few minutes

No board.

I don't really care about the intercom not being able to ring since I can just buy the chime from Ring........ but I spent 3 hours today trying to get my ring to work and it refused draw power from the existing electrical wires. What gives? I have an intercom doorbell TekTone OR603W - should I call an electrician or just send it back?

A 24 volt relay would solve it.

The Ring Pro IS compatible with the Nutone. Just use double sided tape and secure the Ring so that the button is right over the Nutone button. It is a kludge but it works 100% of the time.

Electricity does not flow. Current flows. Electricity is just a measurement of a difference of potential.

Well... at least now I know that I need to return my NuTone door chime because it's not compatible with my Ring doorbell.... : (

I just hardwired a Ring 2 doorbell using the pair of wires that connected to a Nutone speaker and doorbell unit. Works fine.

My wifi is not connecting with the Ring doorbell ??

You just need a relay, so depending on where you get the relay, a simple $2 part will make it work.

You can he’s wrong u need two transformers and a relay.. you can do anything with Electricity, The only thing you need is imagination and knowledge🙏🏾

20 minute video for 3 minutes of information

You are trying to use obsolete electronics with the latest technology. I don't see a return on investment. There are modern chimes that will replace the old stuff cheaply and quickly. That said, Maybe it could be done, with some added stuff. I suspect that If you connect relay contacts to the doorbell switch contacts on the Nutone chime, and powered a suitable relay coil in series with the Ring, the surge current when the Ring is powering its speaker would close the relay and fool the Nutone chime to work. Again, this is a waste of time and money. Get a modern chime. The Ring Chime gives you a chime and WIFI repeater in one, and installs simply.

100 % bla-bla-bla