[Solved]fuse blows every time in the Netatmo Doorbell

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Ck247
Posts: 5
Joined: 24 Jul 2019, 14:31

[Solved]fuse blows every time in the Netatmo Doorbell

Post by Ck247 »

Hi,

My original setup was a Siedle CA 812 (with two intercoms) and a Grothe mechanical chime (Chime 165 with two simple cable connection). The transformer is a Siedle TR 603 (12V, 1.3A). For usage with the Netatmo I do not need the intercoms anymore. But after installation of the Netatmo Doorbell its fuse constantly is blown out requiring me to replace it (it‘s a 500ma 25

Turned power off in while house. Then I first connected the Netatmo Chime Dongle with the two cables of the chime - simple as my chime has only to. The Chime dongle was set to low/1.
Then I connected b & c (as shown in the diagram) to the Netatmo doorbell. I turned on the power at the central switch and the Netatmo showed LED blinked and showed up in the app for setup. I completed the app setup and even added the Netatmo doorbell to the Home app. I pressed the doorbell button, the chime did NOT ring but the app did and even my Homepods rang (via HomeKit integration provided by the Netatmo app). So I was happy that I had a temporary solution until I figure out the mechanical chime issue. The Doorbell LED showed Green during install and then Blue afterwards (i.e. ready) do I did not need to setup the chime dongle any further appearantly.
Unfortunately my luck only lasted for 5-10min, after that the LED of turned off and the Doorbell disappeared from the App, the button also did not work.

I checked the (small glass) fuse in the Netatmo doorbell and it was blown. Since there was a replacement fuse in the box I tried it with that and the doorbell worked again for another 5-10min, then the fuse blow again, leaving the doorbell without function.

What am I doing wrong? Cabling? Chime? Transformer? Replacing the fuse every 10min is of course not an option but I would still love to use the Netatmo doorbell. Any suggestions?

Attached pictures of the cable diagram of my siedle, the transformer and the Chime. Any ideas?
Attachments
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F4E64584-5853-4929-9CE2-64F87C5753CA.png (701.55 KiB) Viewed 1508 times
Last edited by Ck247 on 05 Jan 2021, 14:45, edited 1 time in total.
Ck247
Posts: 5
Joined: 24 Jul 2019, 14:31

Re: fuse blows every time in the Netatmo Doorbell

Post by Ck247 »

A quick update; I checked the compatible chime and replaced my Grothe Chime with a Honeywell/Friedland D142 (see list here: https://helpcenter.netatmo.com/en-us/sm ... o-doorbell).

The chime works with my old setup but unfortunately the fuse of the Netatmo Doorbell still blows out (i.e. the small wire in the fuse glass tube breaks) even after I prepared the doorbell with a full factory reset. Good thing I bought a 10 pack of glass fuses (500mA 250V) from Amazon so at least I have a few replacements ready when Netatmo answers by ticket...

Anyone an idea what could be wrong? The transformer I have is a Siedle 12V AC 1.3A (see picture in previous post).
Ck247
Posts: 5
Joined: 24 Jul 2019, 14:31

Re: fuse blows every time in the Netatmo Doorbell

Post by Ck247 »

By the way, this issue is resolved for me, Netatmo support suggested that I use a 1A instead of a 500mA fuse and now it seems to work. No issues anymore. And I love the HomePod chime!
loekf
Posts: 22
Joined: 27 Apr 2016, 17:59

Re: [Solved]fuse blows every time in the Netatmo Doorbell

Post by loekf »

Same here. Once in a while the fuse would blow after someone pressed the button.

I have a 12V setup.

It looks like with the doorbell drawing around 300 mA, that 500 mA fuse is too tight. I also replaced it with a 1A fuse. Works fine.
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