I have a Worcester Bosch Highflow 400 boiler. The boiler setting has always
been set to 3, and this maintained a constant temperature summer and winter.
Recently the hot water has become far to hot, in fact hot enough to scald.
Whilst we are always careful, with children in the house we were concerned
and called in the service engineer. He said that the boiler was fine, it was
the water entering the house being warmer to begin with, due to being
He suggested we simply turned the setting down to 1 or 2.
We have never had this problem in the past, should a thermostat not stop the
water heating about the original setting regardless of the water entering
the boiler ?
Would appreciate some advice as to whether I need to call another service