How can I fix my boiler Baxi 80e?

Turn on boiler,(if either select hot water only or heating and hot water is the same)because the failure red lights are coming quickly on from left side.
Gas 30',temperature 40',fan 50',pump 60',hot water 70',But the heating 80' just doesn't light
The bottom yellow lights,Burner on!,etc.The Heating light one hasn't on? I hope its fuses or sensers what ever,please!