Red light on Alph CB28

[sequencedancer]

Today I had my Alph CB28 Boiler powerflushed and 4hours later the red light is continualy on, I have re set it, but evey time the heating tries to come on the ignition can't light and so the red light comes on, can any one tell me what the problem is?

[Agile]

Too late now but the obvious person to ask is the person who power flushed it whom one assumes is a heating engineer!

Tony