Halstead Ace High PCB?

the boiler ignites but only stays on for 10 seconds then cuts out for both heating and water. The power light then flashes .
Please can anyone help.
Lyn Red, April 2012
there may be water in heatexchanger thus causing short to sence electrode thus flame goes out, check it out first

k, April 2012
link Click here to see other fixes for Halstead Ace High.