I was called to a home to address a variety of issues, including loud circulators, insufficient heating, and lack of hot water. Upon arrival, I found that the water feeder had been previously replaced by a 3rd party, but had not been turned back on, resulting in air in the system. This caused lack of water movement, loud noises, and banging pipes. I turned the feeder back on, purged air, and everything seems to be functioning properly at this time.
