Me too,
I am a complete novice when it comes to boilers but I envisage it to be something relatively minor as my radiators work fine & the boiler isn't making strange noises, Indeed the boiler and digital stuff next to it all seem fine, but alas still no hot running water.
Have tried basics of switching system on & off, twiddled few knobs, bit still no heated water!
Tania Leigh
January 2013