We had a boiler fitted around this time two years ago, ie this will be our third winter with it. The plumber was recommended to us by an acquaintance, but then appeared to subcontract it out to a friend/colleague of his, with whom we ended up having a few issues (thread here - in the end, after waiting six bloody weeks for J to come back and fit our shower and radiator in the bathroom, promising every day that he'd be there the next day, I called the original plumber, K, who fitted them immediately and returned our £100).
The boiler is a Worcester with an analogue timer. Last winter, ie the second winter of use, the clock on the timer started playing up - it kept stopping so the time was wrong so the heating either wouldn't come on or wouldn't go off when it was supposed to. DH reckons this happened once or twice the first winter as well but so infrequently we didn't really take any notice of it. I did call K last year and left a message but he never got back to me and the problem wasn't too bad (and I hate hate using the phone 
) so I left it. This winter is become really really bad - the clock basically isn't going round at all now, so we're having to turn the heating on and off manually all the time #firstworldproblems
I've left a message for K, which he ignored 
and have spoken to him twice. Each time he said he wants to speak to J, who installed the boiler, and will call be back. He hasn't called back. I appreciate it's a busy time of year for him as everyone turns their heating on and discovers it isn't working, but I'm getting increasingly fucked off. I also don't particularly want J back in my house, as I don't trust him and originally contracted with K.
I've spoken to Worcester, who reckon the entire timer will need replacing. They've said that an engineer from them will cost £250, which includes parts and labour.
DH has just found the unposted warranty card under the sink so it's probably not covered by the warranty (yes, we are idiots).
WIBU to give K a final chance to put it right and then get Worcester to do it and bill K? Or should I just pay another plumber to fix it? It just pisses me off that we only had one winter of decent use from the damn thing.
Sorry for the rant!