Combi Boiler Breakdown Training Day Two! January 30, 2018 Day Two Combi Boiler Breakdown Training!Even with over twenty years experience, it’s essential to accept the fact that it’s impossible to know all makes and models of boilers inside out. Even though pretty much all boilers have the same “firing sequence”, the testing of the components that do so can have different parameters and methods of testing them.Today was a great day!
