I run a 4100lx steamway that has been having heater problems. I can't trouble shoot what is wrong with it. When I'm running the engine I turn the heat switch on and it will run and I can hear it burning but after about 5-8 seconds it cuts off. Then it will come on and off for a second until it completely stops. I have replaced the flow switch and checked all grounds. When the heater kicks off everything stops, it stops spraying kerosene and everything. Does anyone have a clue on how to fix this issue or can pint me in the right direction.