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1. On the app, override one zone at a time to 28°C for 1 hour. 

   1. Click on the zone to override.
      

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   2. Change the mode icon at the top-right to the Override symbol (3 arrows).
      
   3. Ensure the override temperature is 28°C and the override duration should be 1 hour.
2. Check that the wired device is active:
   1. A Single Channel Receiver shows a green light.
      
   2. An Electric Switch shows a red light next to 'HUB'.
      
   3. A Smart Plug shows a red light above the socket.
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   4. A Powered Room Thermostat shows a red light to the bottom right of the display.
      
   5. An Electric Relay shows a red light behind the button on the device. You will need to remove the blanking front plate to see this.
      
3. For wet underfloor heating, check the boiler fires as normal and the correct zone valve has opened or pump has come on.

   1. Check that the central heating pipe from the zone valve, pump or boiler gets hot.

   2. Wait 30 minutes!

   3. Now check the floor nearest the in & out pipes and see if it is getting warm. The other rooms, not overridden yet should remain cold.

4. For electric underfloor heating:

   1. Wait 15 minutes!

   2. Now check the floor to see if it is getting warm.

5. For electric space heating check:
   1. Wait 5 minutes!
   2. Now check that the heater has began to warm up. The other rooms, not overridden yet should remain cold.

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