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I have chronotherm T8600C thermostat 5 wires W G R RC Y. W goes pump relè ok, G goes to fan relè, here is the problem on Auto fan does not come on- on Fan on it does come on Why ?
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Single Transformer, I have jumper between R-Rc . Y goes to cooling relè and the fan works fine on Auto and Fan on . Where is the problem? What should I do ? Thanks for your help Submitted on 2-2-2021 at 11:09