You are correct about car servicing .That "rule" was outlawed or removed a while back . AlphaBoilers have said in an e-mail to me that not doing an annual service will not invalidate the 3 year warranty .I have printed it out and kept it with the boiler documentation.
Well I got the guy out to do the service and ,as I suspected would happen ,I'd have been as well not getting it done and save myself the £73 . I was hard pressed to see what he actually did for the money .I got the impression he was fiddling around to make me think he WAS doing things but I could see he wasn't . He knew from speaking to me that there had been no problems except for a small leak that Alpha had fixed . He certainly didn't do all the things listed for a service in the Alpha documentation . From speaking to him it was clear he was an Ex Scottish Gas fitter now working on his own but also on the books of the company that I contacted . Acht well..once bitten twice shy .
-------------------------------------------------------------------------------------. I posted the above reply yesterday about getting my CH Boiler serviced .I happened to look at the boiler last night and close the flap covering the panel display and noticed that this guy had not fitted it properly .....He had not fitted the bottom part properly before screwing in the screws at the top .FFS