Noises

[Romanow]

after turning off thermostat I hear banging sound in liquid line by the coil,and noises ? pleas help

[Diceman]

When we all get to the convention we will spend the entire time trying to figure out your highly complicated issue.
Sounds like some form of radiation is leaking out of the system.
Not sure I would stay in the house till a hazmat team cleans up that mess.