The low flame signal on Goodman furnace
In the furnace, a low flame signal can indicate that there is a problem with the fuel supply, either in the combustion chamber or in the gas line.
This could be caused by dirt or other contaminants in the gas line. It could also be due to corrosion buildup in either the burner assembly or flame sensor.
The low flame signal is a type of error code that appears on the digital display of some Goodman furnaces. This error code typically means that there is an issue with the gas pressure inside the furnace.
The most common cause of this problem is a clogged gas valve, which restricts the flow of gas to the burner. The other possible causes are: air leaks, pilot light going out, shorted wires in control panel, dirty flame sensor or control board, or a faulty thermocouple.
The Goodman furnace is a gas-powered heating system. With a Goodman low flame signal, you know that the pilot light is on and working and it will turn blue when the furnace reaches its desired temperature.
When the pilot light and Goodman Low Flame Signal are flashing, it usually means that there is no gas present in your system. If the flame has been extinguished, your system may have an empty or broken line in which case you will need to replace it with a new one. You can identify an empty line by watching for signs of gas leaking from it or if you hear air escaping from the line before ignition.
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