hello there i have a problem with the above boiler i was removed from a property which was having an upgrade and was working perfectly before removal ,after plumbing it in up my loft to a single rad and a tap to check before fully conecting in to my system it seems that once i switch it to heating it fires and ignites burns for about 30 seconds and the the burner cuts out still leaving the pump running the temp rises to about 30 degrees has any one else had this problem p.s if i call for water that operation is fine
