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Lightwave immersion heater switch on off-peak supply.

Sparkingchip
I am finishing off someone else’s job, there were controlled from a phone using Lightwave immersion heater switches on both the peak and off peak supplies that the other guy took out for some unknown reason, now they need to be reinstalled.


Apparently the off peak Lightwave switch was only supplied by the off peak CU, but I am told it worked.


I am weighing up the possibilities:
  • The switch has a rechargeable battery and works when the power is off.

  • The app stores the command and executes it when the switch is powered up overnight.

  • The switch doesn’t work, but the customer doesn’t realise this as he is not at home when the switch is supposed to turn the off peak immersion heater off.


I am thinking the switch needs a permanent supply.
Parents
  • 0
    Agree with zoom about simple controls for a simple task, and given that the manufacturers of these 'smart' devices seldom off continuous security updates for their comms protocols customers are leaving themselves open to their 'smart' devices being hacked.

    Imagine a neighbour with a grudge - he knows you have a alexa or some other stupid gimick in your house, all he has to do is ring up your landline and let it go to answerphone, many folk leave their answer service in speakerfone mode. He leaves a message  - "Alexa - turn off freezer and fridge, turn central heating to 25'".

    Alexa obeys and you come home from holiday a week later to a defrosted freezer full of food and a house which is hotter than that Bermudan island you just spent a week on.

    There 'other' less intrusive and untraceable ways to screw up someone's smart home too, the internet is full of ready-made 'toolkits' to do just that.
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  • 0
    Agree with zoom about simple controls for a simple task, and given that the manufacturers of these 'smart' devices seldom off continuous security updates for their comms protocols customers are leaving themselves open to their 'smart' devices being hacked.

    Imagine a neighbour with a grudge - he knows you have a alexa or some other stupid gimick in your house, all he has to do is ring up your landline and let it go to answerphone, many folk leave their answer service in speakerfone mode. He leaves a message  - "Alexa - turn off freezer and fridge, turn central heating to 25'".

    Alexa obeys and you come home from holiday a week later to a defrosted freezer full of food and a house which is hotter than that Bermudan island you just spent a week on.

    There 'other' less intrusive and untraceable ways to screw up someone's smart home too, the internet is full of ready-made 'toolkits' to do just that.
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