Baxi Combi 105HE Flashing Lights?

Hi,
We've just noticed that both the Flame failure reset and air flow monitor lights are flashing on our 2 1/2 year old boiler. It works perfectly fine for central heating and hot water. Please could somebody tell me whether this is dangerous and we should not be using the boiler and also if it sounds like something we could try fixing ourselves?
Thanks,
Sue