1. Lack of Gas: Make sure that there is an adequate gas supply to the water heater. Check the gas valve to ensure it is open and inspect the gas line for any kinks or blockages.
2. Improper Airflow: Adequate airflow is necessary for the pilot light to stay lit. Make sure there is no obstruction around the air intake and exhaust vents of the water heater. Clean any dust or debris that may have accumulated.
3. Damaged Thermocouple: The thermocouple is a safety device that senses the presence of the pilot light and keeps the gas valve open. If the thermocouple is damaged or dirty, it may not be detecting the flame and causing the gas valve to close, resulting in the pilot light going out.
4. Dirty Pilot Assembly: Dirt and debris can accumulate in the pilot assembly, including the burner, orifice, and thermocouple, affecting their proper functioning. Cleaning the pilot assembly regularly can help prevent the pilot light from going out.
How big should the flame be?
The size of the pilot light flame should be according to the manufacturer's specifications. It is typically about 1/4-inch to 1/2-inch in height and should be blue in color. If the flame is too low, it may not stay lit, while if it is too high, it may cause damage to the water heater.
If you have tried the above troubleshooting steps and the pilot light still keeps going out, it is recommended to consult a qualified technician to diagnose the issue and perform any necessary repairs.
