optima 701 ferroli does not work on central heating but it gives hot water?

My optima 701 ferroli combi boiler works very well only 0n hot water but when its knob is turned to turn on the central heating system my boiler does not work.So I can only get hot water but can not get the heating.Please help me to fix this problem.
Thanks
Khan
Khan, October 2006


done
im looking on here cause mines just done the same after 7yrs

pauline jackson, November 2007
I have the same problem with my Ferroli Combi, hot water but no central heating. I'm assuming its a problem with the pump?

Jim, October 2006
Sorry mate no answer but mine has just done exactly the same thing, hot water no heating. Must be an october thing. A friend knows a little and had a look but aint sorted it yet. If i get it sorted Ill post the solution........................

Regs

Bongo, October 2006
link Click here to see other fixes for Ferroli.