I have Ferroli Modena 102 it is losing water on CH side when CH is not on their is definetly no leaks any were what is the solution
8752, June 2009
Can we please have some more info Harry.
Model of boiler/water heater would be a good start.
Also if you could look inside could you give us the GC (Gas Council) number. It should look something like this
GC 47-267-24
Thanks