Thanks for the information so far.
I have checked in my Trianco book and have noticed a possible solution to the no hot water problem.
It suggests turning power off, and removing micro-switch assembly by pulling off circlip.
Unfortunately, I do not know where this is. any ideas ??
Thanks for the reply suggesting that a divertor valve may be faulty, hence no hot water unless the heating is turned on.
Does anyone know how to fix this problem ? Is it something I can attempt myself (if so does anyone have instructions ?) or do I need to call in a plumber ?
Is it...
I have a Trianco oil fired combi boiler (about 5years old). It recently stopped giving out hot water unless I also turned the heating on.
Does anyone have any ideas please. Do I need to call a plumber ?