Love this site, have never had to post before as usually find the answer hidden somewhere. My question is this.
When replacing the DHW heat exchanger in my WB greenstar 30cdi combi boiler. Should I drain down the system first?
I've had a good read of the instructions in the WB Installation manual (about 10 lines of text) and I doesn't mention doing this and only refers to undoing two screws.
Surely I can't be this lucky.
Let me down gently please.
When replacing the DHW heat exchanger in my WB greenstar 30cdi combi boiler. Should I drain down the system first?
I've had a good read of the instructions in the WB Installation manual (about 10 lines of text) and I doesn't mention doing this and only refers to undoing two screws.
Surely I can't be this lucky.
Let me down gently please.