STC-1000X temperature controller

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mickc

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I've just bought 2 of these updated STC-1000 controllers and today set about fitting one to a fridge. The wiring looks dead simple, but I'm getting no output power. Even when the controller indicator light tells me the cooling or the heating is on, there is no power at those terminals, regardless of whether I have the compressor or heater connected or not. I hear a relay click after the cooling/heating lights stop flashing. Same result on both units which sort of indicates it's not a unit fault. Any thoughts? Cheers.
 

mickc

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Post how you've connected it up. The live does have be linked across.
Thanks. Terminals 1 and 8 share a common neutral.
STC-1000x.jpg
 

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