Dead bored!!!

Central heating annual service today. System switched off, serviced and refused to be switched on again!. The offending circuit board is therefore my blip for today. Fortunately I use the same local person who installed the new boiler 7 years ago to do the annual service and I trust him. He said it had never happened to him before and dashed out to buy a replacement and didn't charge for the labour to install it. By sheer coincidence the post delivered a letter in his absence from the boiler manufacturer giving me my "last chance" to buy their very expensive insurance to cover such eventualities!