Welcome! Here are the website rules, as well as some tips for using this forum.
Argo 6P Controller was making noise now one of the zones not working
I have a Argo 6P with 6 zones setup to it. Suddenly my controller was making a chattering noise and after I turned off and on the power to the boiler one of my zones (Zone 1) is not responding. What do you think it could be? A relay? see attached pictures below