In fairness to all, we don't discuss pricing on the Wall. Thanks for your cooperation.
Mixing valve on Stadler manifold chattering
I have a system I installed approx 15 years ago. It consists of a Stadler Viega Basic Heating system controller with mixing valve control and a Stadler Viega manifold with the mixing valve solenold/actuator. The actuator has begun to chatter like it is trying to do something but cannot make up its mind. I am concerned that the Basic controller has gone south. Is this a possibility? If so what are my options? The system has worked pretty good all this time. Is there a different controller?
Thanks for any ideas BTW I installed the system myself with the guidance of a master plumber.