Wiring got inspected recently, rented property and landlady is a really good one for a change so all that, gas, heating etc... Checked yearly, think answer is just bad luck. So after spending over £500 for a new one today opted for £7 a month insurance, now I'm paying that I guarantee it will never die until I cancel it. (Just my opinion) cancel it. That's £84 a year, and if it dies in the first couple of years you would have a pretty reasonable case using the consumer rights act to get it sorted. I'd say it's worth a punt. Failing that have a look here https://www.money.co.uk/appliance-insurance.htm That looks much better deal, will have a proper look later, got 14 days cooling off cheers.