when my mum and dad (pensioners) asked a guy to fit a full central heating system (proper corgi guy)my dad was asked analogue or digital rf timer controller ,he asked for digital as he can work digital timers better , the guy said ok, my parents are on holiday while he fits the system and have left me to over see it ,now he has nearly finished the installation but he is fitting an analogue rf controller as he says "they" meaning the manufacturers have had problems with digital controllers its for a Bosch worcester Boiler.. my question is has anyone else had problems with digital controllers?