How to set up the Shelly Plus 1 in 7 steps
Step-by-step help for the Shelly Plus 1 (SNSW-001X16EU) relay. Short, clear instructions to set up the device and fix common connection issues.
What you need
- A working Wi‑Fi router with internet
- Your Wi‑Fi name (SSID) and password
- The 'Shelly Smart Control' app installed on your phone
- The device powered according to the user guide
Step by step
- Power the deviceConnect the Shelly Plus 1 to the correct power supply (110–240 V AC, 24–48 V DC or 12 V DC) following the manual.
- Check the LED statusLook at the red LED to identify the device status.How you know it worked: Solid ON = connected to Wi‑Fi; 1s on / 3s off = Wi‑Fi enabled but not connected; 1s on / 1s off = AP enabled and Wi‑Fi disabled
- Open the Shelly appOpen the Shelly Smart Control app and sign in or create an account.
- Start adding a new deviceIn the app choose 'Add device' and follow the on-screen instructions.
- Activate AP/Bluetooth if neededPress and hold the device button for 5 seconds to enable the access point and Bluetooth if the app cannot find the device.How you know it worked: LED blinks 0.5s on / 0.5s off during the press and then shows 1s on / 1s off when AP is active
- Select your Wi‑Fi network (2.4 GHz)In the app choose your Wi‑Fi SSID and enter the password; ensure you use the 2.4 GHz network.How you know it worked: The app shows success or the LED becomes solid ON when connected
- Name and test the deviceGive the device a name in the app and test switching the relay on and off.How you know it worked: You can toggle the relay in the app and the LED stays solid ON
Common problems
Plus 1 won't connect to wifiPlus 1 app can't find itPlus 1 reset
Frequently asked
Does the Shelly Plus 1 support 5 GHz Wi‑Fi?
No. Use the 2.4 GHz network for setup and normal operation.
What LED indicates the device is connected?
A solid red LED means the device is connected to Wi‑Fi.
What is lost after a factory reset?
Wi‑Fi credentials, schedules, cloud links and local settings are all removed; you must set up again.
Can I install the Shelly inside a wall box?
Yes. The device is small and designed for mounting behind switches and in wall boxes per the safety instructions.
Updated 2026-09-09