I have a Baxi Solo heat only boiler sited in the loft. Been working fine for about a year but has just started having difficulty starting first thing in the morning. I can hear that it takes 3-4 attempts to ignite when starting for the first time in the morning but does normally get going. After that and throughout the day it starts up first time with no problems. On a couple of occasions it has not started and locked out. Pressed reset button and starts first or second time and again fine for rest of day. Had a similar problem and had new igniter unit fitted just over a year ago so would have thought this should still be okay. Anyone got any ideas what else could be worth checking ( gas pressure ?//) or is this fairly normal ?