I have one at my flat. I have running hot water but no heat. The pressure and pump works fine, only thing I notice that when I turn on the heating the heat exchanger for heat is not warm. Are you able to help explain why that would be.
Could be either TWA-230v actuator or RAVK controller zone valve pins stuck in closed position or differential pressure valve seized but would have to go through elimination sequence to find out.
I have one at my flat. I have running hot water but no heat. The pressure and pump works fine, only thing I notice that when I turn on the heating the heat exchanger for heat is not warm. Are you able to help explain why that would be.
Could be either TWA-230v actuator or RAVK controller zone valve pins stuck in closed position or differential pressure valve seized but would have to go through elimination sequence to find out.