Red light is on the hydra-stat box (low water) and burner will not fire.
What should I do ?

What does the pressure gauge on the boiler read? If the pressure is to low, your low water cuttof will shut the system down (or at least not allow the burners to ignite). YOu have one of two problems. 1. low water pressure. 2. A fualty low water cuttoff control.