Thank you all or your suggestions. I have been away for xmas and could not thank you earlier.
i have replaced the safety stat (no luck)
i shall replace the comb door seal next and then the pump.
then the condensate trap.
fingers crossed.
Once again thanks.
My Potterton Promax 24 HE is doing my head in. It is 7 yrs old and when i fire it up it comes on and all the rads get warm. After 10 to 15 mins it goes off and will not restart unless i go an press the reset switch. Once it restarts it only runs for about 5 mins and goes off then i have to...