fault on saunier duval boiler?

I have a Thermaclassic F30E boiler which keeps displaying F12.
I was using the hot water tap, central heating was turned off and all was working fine until power got turned off.
When power was returned the boiler seemed to have shut down and now all I am getting is F12 appearing in the screen.
I have looked in the manual whixh says F12=User interface or distant control panel fault.
Surely power being turned off would not have damaged this.
Please help!
Steve Treen, November 2006


done
boiler is not heating and pressure is increasing to 3 bar,what should i do

shahzad, May 2007
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