A mate has heating problems. He had a powerflush 2 years ago which didn't
fix it. He had a contract with Scottish Power and all they can do is offer
to fit a new pump despite his pump being onto 2 years old. The say he needs
a powerflush - surely not!

The problem is - how can he find someone to diagnose and fix the problem.
It is not a traditional plumbers (pipe strangler) job. It is not a boiler
problem. It could be balancing or control.

Who has the diagnosis skill and commitment to find and fix the problem
without just replacing things and doing money making jobs?