[CraigM]

I recently had the inducer motor replaced on my Goodman gas furnace. About a week later, the furnace began running through the ignition cycle 2-3 times before staying on. I called the installer out and he mentioned something about removing excess gasket material that was protruding into the heater box. He left and the heater worked for about 3 days and then returned to the same problem. I looked into it and found that when the gas ignites, the burner furthest from the ignition source does not have a consistent flame. The flame sensor is located at that last burner and dutifully shuts down the gas when it senses insufficient flame. The ignition cycle repeats and eventually the burner stage ignites normally and the normal heating cycle is achieved. At this point I don’t have a lot of confidence that the installer can resolve the problem. Is it caused by mixing too much air, too little air, a bad gasket, the wrong inducer motor, or something else?