Had a result thanks to bunnyman and bunny831 swopping thermostat card worked a treat .The only slight prob is it now waits 4-5 min before starts again. Which one of the 3 variable resistor's alters this time?could not find any with plus or minus on didn't want to adjust any now it's working!Thanks for all your help. Just read another post about anti cycle this said possibly upto 15 min so think I will just leave it alone!!