Wondering if any one has any ideas the fan on my swiftflow 80 packed up so I bought a new one and replaced it. All was fine for 2 days untill I noticed the pilot had gone out I relit the pilot and turned power on and the pilot went out I carried on trying and the same thing happened the pilot is fine with out the power on its only when I turn the power back on and the fan starts running that it goes out. I am thinking it could be the pcb but do not want to pay lots to replace if it is not the PCB any help appreciated.