Introduction
A furnace ignitor plays a crucial role in starting the heating process in your Goodman furnace. If you are experiencing issues with your furnace not igniting properly, it is essential to perform a test on the ignitor to determine if it is faulty. In this article, we will guide you through the process of testing the Goodman furnace ignitor and provide troubleshooting tips.
Understanding the Furnace Ignitor
The furnace ignitor is responsible for creating a spark or glowing element that ignites the gas in the combustion chamber. Over time, the ignitor can become worn out or damaged, resulting in ignition problems. It is crucial to regularly inspect and test the ignitor to ensure it is functioning correctly.
Testing the Ignitor
To test the Goodman furnace ignitor, follow these steps:
1. Turn off the power to the furnace by flipping the switch on the breaker panel.
2. Locate the ignitor, which is typically located near the burners or the gas valve.
3. Disconnect the ignitor from the furnace control board or the wiring harness.
4. Use a multimeter to test the resistance of the ignitor. Set the multimeter to measure resistance (ohms) and touch the probes to the ignitor terminals. A functioning ignitor should show a resistance reading within the manufacturer’s specified range.
5. If the resistance reading is outside the recommended range, the ignitor is likely faulty and needs to be replaced.
Troubleshooting Tips
If the ignitor test indicates that it is functioning correctly, but your furnace still fails to ignite, consider the following troubleshooting tips:
1. Check the Gas Supply
Ensure that the gas supply to the furnace is turned on. If the gas valve is closed, the furnace will not be able to ignite. If the gas supply is on, but you don’t smell any gas, contact a professional to inspect for possible gas leaks.
2. Inspect the Flame Sensor
A dirty or malfunctioning flame sensor can prevent the furnace from igniting. Remove the flame sensor and clean it using a soft cloth or fine-grit sandpaper. If cleaning doesn’t solve the issue, consider replacing the flame sensor.
3. Check the Thermostat
Ensure that the thermostat is set to the desired temperature and is in heating mode. If the thermostat is not functioning correctly, it may not send the signal to the furnace to ignite.
4. Inspect the Control Board
A faulty control board can also be the cause of ignition problems. Inspect the control board for any visible signs of damage or burn marks. If you notice any issues, consult a professional to replace the control board.
Conclusion
Testing the Goodman furnace ignitor is an essential step in troubleshooting ignition problems. By following the steps outlined in this article, you can determine if the ignitor is faulty and take the necessary steps to rectify the issue. If you are unsure or uncomfortable performing the test yourself, it is always recommended to seek professional assistance to ensure the safety and proper functioning of your furnace.