haavardw Posted November 22, 2023 Share Posted November 22, 2023 Hi, my electrician did this wiring on two Shelly Pro 4PM devices. He has no experience with Shelly from before, but he says the wiring seemed straigth forward, and assumes they should work just fine. They don't. The units power up, but when trying to open the circuits, nothing happens. I have verified that there is power and correct V in, but not out. Can you help me out? Quote Translate Revert translation? English (American) Finnish French German Italian Portuguese (European) Spanish Link to comment Share on other sites More sharing options...
Shelly Olsche Posted November 22, 2023 Shelly Share Posted November 22, 2023 What are all the blue wires connected to O1-O4 and the brown wires to S1-S4?A sketch of the wiring would be helpful Quote Translate Revert translation? English (American) Finnish French German Italian Portuguese (European) Spanish Link to comment Share on other sites More sharing options...
haavardw Posted November 22, 2023 Author Share Posted November 22, 2023 3 hours ago, Tobias Olschewski said: What are all the blue wires connected to O1-O4 and the brown wires to S1-S4?A sketch of the wiring would be helpful L&N from the relays which provide power to the building (the two ones to the left in the photo). I don't have a wiring sketch, sorry. Quote Translate Revert translation? English (American) Finnish French German Italian Portuguese (European) Spanish Link to comment Share on other sites More sharing options...
Shelly Olsche Posted November 22, 2023 Shelly Share Posted November 22, 2023 the blue cables on O1-O4 are also neutral cables? That would be completely wrong wired. O1-O4 are the outputs to the consumer, S1-S4 are the external hardware switches that can be connected if available check also here: https://kb.shelly.cloud/knowledge-base/shelly-pro-4pm Quote Translate Revert translation? English (American) Finnish French German Italian Portuguese (European) Spanish Link to comment Share on other sites More sharing options...
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