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Default Need to design a small disconnect circuit

I need a small circuit that can disconnect AC power (means will have a
relay) when it detects freezing on coil. I have a non working
appliance that I want to power up but also include a antifreeze
circuit design so that when it senses ice or freezing on the coils it
powers off/disconnects the relay/power. can anyone help ? is there any
such circuits
available that can do this job ?

 
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