In message
, Jon
Connell writes
On 12 Dec, 20:58, Ed Sirett wrote:
Start with the simple stuff first, has someone inadvertently moved the
heating *temperature setting on the boiler?

There are dozens of possibilities. Make and model will eliminate a number
of them.

It's a WB HighFlow 400 (an infamous combi if my googling is right).

I think that everyone who googles for their particular boiler thinks
that their boiler is the worst around

with the exception of the owners of Potterton Suprimas who know that
they are

The Highflow is not even premier division


--
geoff