Hi We are landlords of a property and have been paying out for landlords home care with BG for a long time now. Since last year our boiler has been breaking down and just before christmas we were told by BG we need a Power Flush and a magabooster (what ever that is). We were told that if we did not get this done then any further breakdowns would cost us even though we pay monthly for our homecare cover. We received a quote from BG for just under £800. taking BG's advice and concerned about our tenant we had a power flush carried out by a 3rd party plumber which was much cheaper. This didn't resolve the boiler breaking again and this time we were told by BG that the power flush hasn't been carried out properly and we now need to replace our secondary heat exchanger which they quoted £600 for. We had the power flush carried out again and before we managed to change the heat exchanger the boiler died again this time not lighting the flame and has water leaking into the flame area. BG stressed this is due to the secondary heat exchanger needing replacing and again they do not think the power flush was done correctly. The secondary heat exchanger has now been replaced by a 3rd party due to BG's prices but when the 3rd party plumber went to fix this he noticed that a) the secondary heat exchanger was clogged up and no powerflush would have cleaned this but also that b) the primary heat exchanger is where the leak is coming from. It seems to have a hole in it. How does a heat exchanger produce a hole init?? We have done everything BG have asked for which so far has cost us time and just under £700. We are still no better off and have a tenant with no heating or hot water. We have called up BG again to get them to check the problem but are now concerned they will charge us for more bits as we did not go for their power flush. I am not sure where we stand with this as they have been telling my tenant that the parts are breaking due to the power flush which we are not convinced is the full problem. any advise would be greatful thanks