I have a alpha CB28X combi boiler which was working this morning came in a hour ago went to put heating on and noticed red and green light flashing. I have noticed red on own before and just set reset which worked this time reset does nothing. There is no response from boiler i.e no noise can you help?

SOURCE: vokera combi boiler

air in system

SOURCE: Boiler problems

heres a copy of the serviceing manuel for the unit. just click on the link and download the manual. http://www.ariston.co.uk/uploads/doc482c2cada6e71.pdf good luck

SOURCE: vaillant 831 combi boiler timer help

check to see the time clock is set with the clock symbol. there are three settings on analog clocks I , O and clock the I setting is constant running, the O setting is off and the clock setting is timer.
also try setting the thermostat up higher to see if the boiler fires.

SOURCE: ariston A01 fault combi boiler

its not definately the pcb. change the detection sensor first( £3.20p). if this doesnt fix a01 fault then change the main pcb(£145).

SOURCE: hi, my ideal combi boiler mini HE C24 has lights

could be your microswitch check overheat stat and fan are o.k. best of luck