hi. I've posted on here before about issues with the boiler cutting out a couple of weeks ago. After a long running saga which involved 2x visits from Worcester Bosch, it turns out that the unvented cylinder (MAIN brand) and the Worcester Bosch are not compatible. I've had a letter today from WB confirming this, they say the cylinder is not compatible with their integral diverter. I also spoke to MAIN who confirmed that their cylinder wasn't compatible, and any workaround would render the warranty invalid and would mean shutting down one of the safety features. They say this is documented that the two systems are not compatible and the installer should have checked first.
I'm now stuck! My installer is insisting this change will work, but I've told him I'm not letting him do any more work unless he can provide written confirmation that both manufacturers agree, but I've a feeling he's not going to be able to do this
Whenever I call now, his wife answers the phone. I can't get hold of him.
What can I do here? Do I have any legal comeback? Surely he can't install something that he should have checked wasn't compatible? what should I do next?