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Hi, I hope someone can help me with this one. I just bought the house from auction and in the house I have house alarm- challenger. I would like to use but I don't know the password and agency who sold they also don't know. I tried to do factory reset but that I don't know what it's factory...

Great. Many thanks for helping me with this

Hi, I hope someone can help me with this. I just got new thermostat but I'm a bit confused with the wiring. Because my old thermostat have only 3 cables- L,N and call for heat cable. The new thermostat I know when to connect L and N but I don't know in which port I need to connect -call for heat...