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Ring Video Doorbell

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Ring Wired Doorbell blowing transformer after two days in service
hardwired-video-doorbell
troubleshooting

Hoping maybe @Sparky521 will see this. I'm about to go on my 5th transformer. I was suspicious of having the old doorbell chime remain in the circuit, so after the first transformer blew I disconnected the old chime and just used a wire nut to join the power wires together and the ground wires together. I have checked continuity on the wiring and suspected a potential short when pushing one of the doorbells wires (I have front and side doorbells) back into the wall. I have blown three transformers since then. The doorbells will work for two days, and then stop working. They are warm to the touch before I disconnect them, and they no longer put out any significant voltage. One of the strange things I see on the multimeter when I measure the transformer connections (w/o the transformer connected) is a slowly climbing resistance up to about 120 ohms, and then going back down. I had been expecting around 50 ohms with one doorbell connected, and 25 with two connected. I have seen that before, but not consistently, making me think there's a semi-broken wire somewhere. I still have to go and disconnect the doorbells to check resistance on those branches from where everything is joined in the box of the old chime. I should note that the transformers have been 2 ring and 2 third-party, both 16VAC 30va, which ring claims is enough for two wired doorbells. Any ideas? Thanks.

308

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13-08-2023 02:50:37

Responses (2)

  • U

    Similar problem here. Watching thread.

    0

    29-04-2025 08:25:58

    • U

      I had the same problem. Checked the doorbells since there were no shorts in the wiring, and on one of the doorbells, the plastic near the terminals for the doorbell wiring was distorted from heat. The other doorbell was OK and had a much higher ohm reading than the "burnt" one. I have a new transformer coming in today, so I'll know for sure.

      0

      02-05-2025 01:23:56

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