Yet another worry with my boiler. Had PCB replaced 7 months ago, stated at time I had cold water leak, 1st engineer said as well as replacing PCB (had no display on panel) he would order heat plate exchanger. 2nd engineer who came to carry out repair said it wasn't needed. Don't know if it's connected but a few days ago i noticed water under freezer, thought maybe it was defrosting! Came home today and my youngest son said there was water on kitchen floor, opened up cupboard round boiler pipes and lots of water there, obviously by stains/dampness of wood has been going on a while.Warm, almost hot, water is gathering under the boiler then dripping down. Am on my own, boiler is working ok, no error codes and pressure fine. Help please. Thanks for reading.