Been having trouble running a household furnace with a solid state flame control on standby generator power. The furnace runs flawlessly on the grid, but on standby, the flame keeps droping out, and after three tries at ignition, locks out. The generator is a 30 year old 3 phase wye 15kw. The furnace is 120v single phase. I have checked the voltage at the control, it is perfect, even under startup surge. Any ideas?
