Thank you so much, followed the video and finally my Nest works. I had to attach the Nest connector directly to the chime without the connector piece. I watched many videos and I have to say your video was the only one that made any sense. The whole process has taken me 6 weeks (due to lockdown) as I initially tried Nest with an adapter (one of the other videos I watched).After watching your video it took just over an hour. Thank you!
After lots of research and surfing the web, this was by far the most helpful video I’ve seen on this. It helps that you have exactly the same set up as me....new build I’m guessing! 🤔
Thanks for this. We have the same transformer set up but I have wired it to the 24v connector instead of 12v but the transformer is buzzing. Is that because we’ve wired it to the 24v do you think?
Just wanted to say thank you very much for your Nest Hello video and blog; particularly the wiring circuit. The most useful thing I found on the web. All now up and operating smoothly - thank you.
Glad it's working for you and you're welcome. Exactly what I wanted it to do, it took me a wee while trying to piecemeal this together from bits and bobs on the Internet.
I removed everything out of the Deta chime box, powered the new transformer and used the two door bell wires as 12v power. Took 15mins and fits in Deta Box, no drilling.
I have a eufy doorbell and I bought this transformer. But when I turn the doorbell circuit back on it just trips and turns off again and I have no idea why. The eufy doorbell needs 12 to 24 volts and I’m sure I put the wires in the right holes. Got any ideas?
very helpful followed the instructions and it works . the only thing that i would recommend is a relay for the chime because the output is 12v and the chime is 8V and probably in time it could damage the solenoid . That only if (Ding dong dash) from the kids
What VA and voltage was your chime transformer? I am doing same thing but thinking of running nest on 24v instead 12. Then using resistor to drop voltage to drive chime solenoid with nominal voltage.
Hey mate how did you get on with the chime. I have got the nest doorbell battery one that can be wired into existing doorbell power and chime but there no google chime disc thing. Did you use a resistor?? Cheers
I have the delta C3500 which is the doorbell on the left. Mine has a transformer at the bottom. I have just changed the push button to an illuminated push bell. For some reason the illuminated does not work. Any ideas? Do I need to remove the transformer? Thanks
Hi, does the doorbell work when the button is pushed? If yes and the illumination doesn't work then it could be the transformer is stepping downower than the power required for the doorbell to work? I'd check the transformer output vs doorbell input requirements.
Hi Paul, great resource. When measured I’m getting 15V AC at the transformer and at the chime. Haven’t tested the voltage at the doorbell yet. Should 15V AC be enough? I don’t have the same chime/transformer that you have.
Thanks for looking. That's plenty according to Google and assuming you are in Europe. The device needs between 12-24 V AC in Europe or between 16-24 V AC in US. support.google.com/googlenest/answer/9247132?hl=en-GB#:~:text=Nest%20Hello%20needs%20to%20be,VA%20(in%20North%20America).
I have followed the install guide but cannot get my original Deta C3501 chime to work. Nest doorbell is all working great. I tested wires coming from the Chime Connector with a multimeter but not getting any reading, any ideas what might be wrong?
Hello. Thank you so much for this. Can I ask what the power is coming into the Doorbell existing Deta C3500? I have the same issue for Ring video Doorbell 2. I was told I need 8-24v power and that my Deta c3500 is incompatible! Reason is that the power coming in may be whatever it is but the power going out is around 6V. I’m hoping you have the same power so that I can copy you! Fingers crossed 🤞🏼
Hi Kousaf, it has a onboard transformer but I did not see any marked voltage output when I removed it but I knew it wasn't enough to power the door bell. According to documentation www.google.com/url?sa=t&source=web&rct=j&url=detaelectricaltest.co.uk/Essentials%2520Data%2520Sheet%2520-%2520C3500%2520V3.pdf&ved=2ahUKEwjT1ZTs7ajuAhURmYsKHUiVB8YQFjAQegQICxAB&usg=AOvVaw2CwzELe_SRoy-GiuicUvB_ it output 6v as you mentioned.
Thanks for this, super helpful. I have a couple of questions if you can help, from the wire that’s going to your doorbell, where does that blue wire attach to? I have 2 core to the bell, so one end would go on the chime connector... does the other go into the 0V connector at the transformer? Also I cannot for the life of me unscrew the transformer terminal screws. Was yours stuck at all?
Hi, glad it's helped you. Yes, one wire from the button goes to the 0v transformer connector. There's a wiring diagram on my website that shows it a bit better. www.paul-lee.co.uk/how-to/nest-hello-doorbell-wiring-with-deta-c3500-c3501-chime-uk/ Didn't have any issues with the screws, I'd recommend trying a longer/larger screwdriver for leverage if not done already.
Great video Paul. I've got the next model up to your chime but decided to ditch the chime all together and just fit the same transformer. I've got the blue and brown going in the one end and then one of the doorbell wires in the 0v and the other in the 12v.all works perfectly but the transformer buzzes. Enough to be annoying. Any ideas on how to stop this?
Hi Paul, your website was super useful for more info thank you. However what size Fuse box did you buy from Amazon please? There's a few options - looks like the 02 Module (smallest and cheapest) one? Thank you
Thanks for this video. I've got the Arlo video door bell with a similar DETA door chime. Will this work? The Arlo video door bell only has two cable hooks coming out of the power kit and not four as in the Nest.
Great video. Hoping to do this same setup in the near future. I'm just wondering, the brown wire that goes from the white nest cable connector into the top of the transformer, where is this from, or did you have source this extra cable? Thanks!
Hi, yes I sourced the brown wire myself for this. If you're using a bell wire, make sure it can handle the voltage you are setting as output from the transformer.
Paul Lee I need to put up a new light fitting too. I’m assuming I could just use some of the excess wiring left over from removing the ceiling rose or the light fitting for this?
Just done this today, everything worked perfectly 👌🏻 Wouldn’t have been able to do it without this guide so thank you very much for taking the time to make it 👍🏻
Thank you for your informative video. I've seen others' wiring the transformer from the 8v and 24v outputs rather than 0v and 12v in order to supply the nest hello with 16v. Can you advise which is best?
I would also like to know please! I wired it yesterday on the table just to see how it worked and connected it to 12v, it seemed to work ok. Then this afternoon I Installed the doorbell and mounted on wall - 12v, and it wouldn't chime even though the nest bell was working fine. I switched it from 12 to 24 and the chime started working.... So I can only imagine it depends on how far away the transformer and/or bell is from the chime?? Since the install, the chime had randomly chimed so now I am no longer sure if 24 is too much. So I am beginning to think that maybe you might be better off actually buying a 16v transformer as instructed by nest unless someone can tell me I have done something wrong.
I currently have mine wired to the 8v and 24v outputs. My doorbell keeps going offline intermittently (no real pattern) so I checked the power output and I am getting 17v. I sent an email to BG to confirm if this was the correct wiring and their response was; "The CUB1 has been tested and certified for use only when outputting 8, 12 or 24 V (by using the zero and 8, xero and 12, or zero and 24 terminals respectively) so your current installation is not a recommended way of wiring the unit in and hence might be causing some unexpected output fluctuations. Incidentally, taking a voltage reading under `no-load’ conditions (i.e. when the transformer is basically in standby not deeding any significant amount of power out to any device) can result in readings which are slightly higher than they would be under loaded operating conditions, so a reading of 17V on a calculably 16V potential difference would not be unusual in such situations. You could go for either a 12V output (zero and 12 terminals connected) or 24V (zero and 24 terminals connected).
One other thing to point out, the unit has an 8VA (or 8W) peak output, so at 8V this provides 1A, at 12V it is 0.666A and at 24V it is 0.333A"
Do you need to put the dongle in? I have this doorbell and am looking to get nest doorbell. Can I just put the power supply in to the 24v transformer and then connect the wires coming out of the transformer to the back of the nest doorbell. I know I won't have a chime but will it work OK?
Well, that was hugely useful. Wasn't expecting to find something so perfect to my needs. I'm in a rental house that we're looking to move out of fairly soon (months). I can make modifications but will need to put back so looking to avoid too much hassle here. Do you know how I could non-destructively set this up? I'm thinking that if I possibly remove the door chime from the loop (use Home mini's for alerts) and wire the mains into the transformer instead - or alternatively add some extra wires from the mains connection of the existing transformer into a new one. Not my wheelhouse so appreciate your thoughts. Also, do you know the spec of the transformer I need? I can pop to Screwfix or the like and ask for help but they might not know what I need here. Huge thanks again for the totally niche and bang-on video.
Hi Paul. I was hoping to follow your inage guide on your site but the images have gone it seems.. so no longer use able. I've followed your video but no luck so far..its the chime wires that confuse me.. so many at each end...not sure what even need using..
Hi Oliver, yeah apologies. I had to switch hosting package so in the process of building the website back up. I'll hopefully get more done soon, will let you know.
@@PaulLee81 you are brilliant... with your step by step guide I've managed to do the successful install and its all working perfectly. I nearly gave in paying £90 but I am stubborn and stuck with it. Much appreciated!
Mines is the 3500, measuring the voltage output of the transformer is the only one way to be sure you have enough voltage. I'd be surprised if it supplied more than 8v for UK doorbells.
Hi, if you have a look at the description of the video there is a link to my blog which details all the parts I used. The enclosure was bought from Amazon UK. Hope that helps. Thanks
I'm really struggling with mine. I've for a chime that's got massive batteries in it. I've hooked up that small circle transformer thingy. I've them put the 2 doorbell wires into the back of the doorbell and it won't even power it. If I plug it into the update port which powers it up, I can connect to to my phone and stuff. But when I press the doorbell. It won't ring the chime. Just sends a notification to my phone.
@@PaulLee81 yeah I think so. Thanks for replying. I've decided to go the easiest option, and that's to have the doorbell powered straight to the mains via an adapter from ebay. Then use a Google mini as the chime.
Hi Ryall, there is a link to the fuse box holder I used on Amazon. It has the description but unfortunately it looks like Amazon don't stock it anymore, but there are alternatives if you search.
Thank you so much, followed the video and finally my Nest works.
I had to attach the Nest connector directly to the chime without the connector piece.
I watched many videos and I have to say your video was the only one that made any sense. The whole process has taken me 6 weeks (due to lockdown) as I initially tried Nest with an adapter (one of the other videos I watched).After watching your video it took just over an hour.
Thank you!
After lots of research and surfing the web, this was by far the most helpful video I’ve seen on this. It helps that you have exactly the same set up as me....new build I’m guessing! 🤔
Yes, new build. Glad the video has helped you out, exactly what I want it to do. Thanks for your kind comment.
Thanks for this. We have the same transformer set up but I have wired it to the 24v connector instead of 12v but the transformer is buzzing. Is that because we’ve wired it to the 24v do you think?
Just wanted to say thank you very much for your Nest Hello video and blog; particularly the wiring circuit. The most useful thing I found on the web. All now up and operating smoothly - thank you.
Thanks for the help, followed your video and it worked perfecting with my C3500 👍
Glad it's working for you and you're welcome. Exactly what I wanted it to do, it took me a wee while trying to piecemeal this together from bits and bobs on the Internet.
Fantastic work
Ah Paul thanks ever so much.. thats really helpful.
I removed everything out of the Deta chime box, powered the new transformer and used the two door bell wires as 12v power. Took 15mins and fits in Deta Box, no drilling.
I have a eufy doorbell and I bought this transformer. But when I turn the doorbell circuit back on it just trips and turns off again and I have no idea why. The eufy doorbell needs 12 to 24 volts and I’m sure I put the wires in the right holes. Got any ideas?
very helpful followed the instructions and it works . the only thing that i would recommend is a relay for the chime because the output is 12v and the chime is 8V and probably in time it could damage the solenoid . That only if (Ding dong dash) from the kids
But the doorbell will be using most of the voltage anyway so I don't think it cause any damage
What VA and voltage was your chime transformer? I am doing same thing but thinking of running nest on 24v instead 12. Then using resistor to drop voltage to drive chime solenoid with nominal voltage.
Hey mate how did you get on with the chime. I have got the nest doorbell battery one that can be wired into existing doorbell power and chime but there no google chime disc thing. Did you use a resistor?? Cheers
@@danhood1957 resistor did not work. 😟
I have the delta C3500 which is the doorbell on the left. Mine has a transformer at the bottom. I have just changed the push button to an illuminated push bell. For some reason the illuminated does not work. Any ideas? Do I need to remove the transformer? Thanks
Hi, does the doorbell work when the button is pushed? If yes and the illumination doesn't work then it could be the transformer is stepping downower than the power required for the doorbell to work? I'd check the transformer output vs doorbell input requirements.
Hi Paul, great resource. When measured I’m getting 15V AC at the transformer and at the chime. Haven’t tested the voltage at the doorbell yet. Should 15V AC be enough? I don’t have the same chime/transformer that you have.
Thanks for looking. That's plenty according to Google and assuming you are in Europe. The device needs between 12-24 V AC in Europe or between 16-24 V AC in US. support.google.com/googlenest/answer/9247132?hl=en-GB#:~:text=Nest%20Hello%20needs%20to%20be,VA%20(in%20North%20America).
I have followed the install guide but cannot get my original Deta C3501 chime to work. Nest doorbell is all working great. I tested wires coming from the Chime Connector with a multimeter but not getting any reading, any ideas what might be wrong?
Hello. Thank you so much for this. Can I ask what the power is coming into the Doorbell existing Deta C3500? I have the same issue for Ring video Doorbell 2. I was told I need 8-24v power and that my Deta c3500 is incompatible! Reason is that the power coming in may be whatever it is but the power going out is around 6V. I’m hoping you have the same power so that I can copy you! Fingers crossed 🤞🏼
Hi Kousaf, it has a onboard transformer but I did not see any marked voltage output when I removed it but I knew it wasn't enough to power the door bell. According to documentation www.google.com/url?sa=t&source=web&rct=j&url=detaelectricaltest.co.uk/Essentials%2520Data%2520Sheet%2520-%2520C3500%2520V3.pdf&ved=2ahUKEwjT1ZTs7ajuAhURmYsKHUiVB8YQFjAQegQICxAB&usg=AOvVaw2CwzELe_SRoy-GiuicUvB_ it output 6v as you mentioned.
That grey cable.... is that directly from the consumer unit? I don't see the earth connection.
Really helpful thanks, I have the same bell transformer from screwfix and your video confirmed the input wires. Works now
Great stuff, cheers. It's an amazing device once you get it up and running!
Does yours have a humming noise? Mine seems to
Adam the transformer in the distribution board?
@@ajhewison I have it set up like in the video. But transformer has a buzzing noise
@@ajhewison Also why wire it to the 0v and 12v and not to 24v?
Thanks for this, super helpful. I have a couple of questions if you can help, from the wire that’s going to your doorbell, where does that blue wire attach to? I have 2 core to the bell, so one end would go on the chime connector... does the other go into the 0V connector at the transformer? Also I cannot for the life of me unscrew the transformer terminal screws. Was yours stuck at all?
Hi, glad it's helped you. Yes, one wire from the button goes to the 0v transformer connector. There's a wiring diagram on my website that shows it a bit better. www.paul-lee.co.uk/how-to/nest-hello-doorbell-wiring-with-deta-c3500-c3501-chime-uk/
Didn't have any issues with the screws, I'd recommend trying a longer/larger screwdriver for leverage if not done already.
Great video Paul. I've got the next model up to your chime but decided to ditch the chime all together and just fit the same transformer. I've got the blue and brown going in the one end and then one of the doorbell wires in the 0v and the other in the 12v.all works perfectly but the transformer buzzes. Enough to be annoying. Any ideas on how to stop this?
I have this very same problem, have you had any luck solving it? 1 question... why is 1 wire in 0v and other in 12v? It needs 16v to 24v doesn't it?
Hi Paul, your website was super useful for more info thank you. However what size Fuse box did you buy from Amazon please? There's a few options - looks like the 02 Module (smallest and cheapest) one? Thank you
No problem. Yes, it is the 02 module. Glad it's helped you out. Cheers!
@@PaulLee81 Thank you, ordered :)
Hi, How much voltage does the Deta C3500 output? Is it 8v?
Thank you
Thankyou, fixed my system!!
Thanks for this video. I've got the Arlo video door bell with a similar DETA door chime. Will this work? The Arlo video door bell only has two cable hooks coming out of the power kit and not four as in the Nest.
It depends, what voltage does the Arlo video door bell require?
Great video. Hoping to do this same setup in the near future. I'm just wondering, the brown wire that goes from the white nest cable connector into the top of the transformer, where is this from, or did you have source this extra cable? Thanks!
Hi, yes I sourced the brown wire myself for this. If you're using a bell wire, make sure it can handle the voltage you are setting as output from the transformer.
Paul Lee I need to put up a new light fitting too. I’m assuming I could just use some of the excess wiring left over from removing the ceiling rose or the light fitting for this?
Yes, that's a similar type of wire I used.
Paul Lee Awesome, thanks. Looking forward to getting it all setup 👍🏻
Just done this today, everything worked perfectly 👌🏻 Wouldn’t have been able to do it without this guide so thank you very much for taking the time to make it 👍🏻
Thank you for your informative video. I've seen others' wiring the transformer from the 8v and 24v outputs rather than 0v and 12v in order to supply the nest hello with 16v. Can you advise which is best?
Yes I would like to know the answer to this? As it needs 16v to 24v, please could someone answer
I would also like to know please!
I wired it yesterday on the table just to see how it worked and connected it to 12v, it seemed to work ok.
Then this afternoon I Installed the doorbell and mounted on wall - 12v, and it wouldn't chime even though the nest bell was working fine.
I switched it from 12 to 24 and the chime started working.... So I can only imagine it depends on how far away the transformer and/or bell is from the chime??
Since the install, the chime had randomly chimed so now I am no longer sure if 24 is too much.
So I am beginning to think that maybe you might be better off actually buying a 16v transformer as instructed by nest unless someone can tell me I have done something wrong.
I currently have mine wired to the 8v and 24v outputs. My doorbell keeps going offline intermittently (no real pattern) so I checked the power output and I am getting 17v. I sent an email to BG to confirm if this was the correct wiring and their response was;
"The CUB1 has been tested and certified for use only when outputting 8, 12 or 24 V (by using the zero and 8, xero and 12, or zero and 24 terminals respectively) so your current installation is not a recommended way of wiring the unit in and hence might be causing some unexpected output fluctuations.
Incidentally, taking a voltage reading under `no-load’ conditions (i.e. when the transformer is basically in standby not deeding any significant amount of power out to any device) can result in readings which are slightly higher than they would be under loaded operating conditions, so a reading of 17V on a calculably 16V potential difference would not be unusual in such situations.
You could go for either a 12V output (zero and 12 terminals connected) or 24V (zero and 24 terminals connected).
One other thing to point out, the unit has an 8VA (or 8W) peak output, so at 8V this provides 1A, at 12V it is 0.666A and at 24V it is 0.333A"
Cheers mate makes perfect sense
Do you need to put the dongle in? I have this doorbell and am looking to get nest doorbell. Can I just put the power supply in to the 24v transformer and then connect the wires coming out of the transformer to the back of the nest doorbell. I know I won't have a chime but will it work OK?
The dongle is a capacitor, regulates voltage and protects the Nest.
Well, that was hugely useful. Wasn't expecting to find something so perfect to my needs. I'm in a rental house that we're looking to move out of fairly soon (months). I can make modifications but will need to put back so looking to avoid too much hassle here. Do you know how I could non-destructively set this up?
I'm thinking that if I possibly remove the door chime from the loop (use Home mini's for alerts) and wire the mains into the transformer instead - or alternatively add some extra wires from the mains connection of the existing transformer into a new one. Not my wheelhouse so appreciate your thoughts.
Also, do you know the spec of the transformer I need? I can pop to Screwfix or the like and ask for help but they might not know what I need here.
Huge thanks again for the totally niche and bang-on video.
Just followed the link - shoulda done that before. Legend.
What do you mean by 1mm cable, the one that goes into the top of transformer what is the correct sizing if there is one
It's normal electric wire from a plug or twin core cable.
Just want to report that my d117 ding dong chime didt work with BG 8-24v transformer. I tried Protek 16v and it just work perfectly.
Hi Paul. I was hoping to follow your inage guide on your site but the images have gone it seems.. so no longer use able. I've followed your video but no luck so far..its the chime wires that confuse me.. so many at each end...not sure what even need using..
Hi Oliver, yeah apologies. I had to switch hosting package so in the process of building the website back up. I'll hopefully get more done soon, will let you know.
Thanks Paul. I ended up with a buzzing noise off my chime system... didnt sound healthy... eek. Ill try another day. Thanks anyway.
@@olivermcnally1110 Good news, I've fixed that post now. All the images are there now. Hope it's of use to you.
@@PaulLee81 you are brilliant... with your step by step guide I've managed to do the successful install and its all working perfectly. I nearly gave in paying £90 but I am stubborn and stuck with it. Much appreciated!
@@olivermcnally1110 Really glad it helped you. You sound like me, won't give up and persistence has paid off! Well done.
Was yours a DETA 3501 ? I read online that the transformer on the 3501 has a 14.5 output ?
Mines is the 3500, measuring the voltage output of the transformer is the only one way to be sure you have enough voltage. I'd be surprised if it supplied more than 8v for UK doorbells.
I have a 3501 and when I measured voltage at the doorbell button end it was about 4v
I am having a problem finding the same or similar junction box, can you help?
Hi, if you have a look at the description of the video there is a link to my blog which details all the parts I used. The enclosure was bought from Amazon UK. Hope that helps. Thanks
I'm really struggling with mine. I've for a chime that's got massive batteries in it. I've hooked up that small circle transformer thingy. I've them put the 2 doorbell wires into the back of the doorbell and it won't even power it. If I plug it into the update port which powers it up, I can connect to to my phone and stuff. But when I press the doorbell. It won't ring the chime. Just sends a notification to my phone.
You have a battery powered chime? Might not be enough voltage from battery to power the doorbell.
@@PaulLee81 yeah I think so. Thanks for replying. I've decided to go the easiest option, and that's to have the doorbell powered straight to the mains via an adapter from ebay. Then use a Google mini as the chime.
Could anyone in the uk help with where one could buy the box to sit the transformer in?
Hi Ryall, there is a link to the fuse box holder I used on Amazon. It has the description but unfortunately it looks like Amazon don't stock it anymore, but there are alternatives if you search.
Could you do away with the Chime completely if you are using Google Homes?
Hi Steven, yeah definitely. No need for mechanical chime if you prefer to just use Google Home devices.