The natural gas furnace suddenly went out with a bang.

1, which may be caused by insufficient natural gas; 2. It may be that the throttle opening is too small, resulting in insufficient air intake and unable to provide enough oxygen for natural gas combustion; 3. Impurities produced by natural gas combustion lead to thermocouple being wrapped by foreign matter or thermocouple aging. If the thermocouple can't transmit a stable temperature signal, the gas supply is cut off and the flame is automatically turned off; 4. The air door is blocked by dirt, and the air intake is insufficient, and the flame will become smaller. When the proportion of gas is large, it will deflagrate, leading to the flameout of natural gas.

Suggested treatment:

1. If you only owe money, you can recharge it online or at the service point of a nearby gas company according to the type of natural gas master controller.

2. As long as you find the throttle switch and turn down the throttle, you need to adjust it until there is no whirring and the flame has no upward trend.

3. If the flameout is caused by thermocouple, check whether the thermocouple protection needle is black or dirty. If yes, gently wipe it with a scouring pad, and it can be used normally after being wiped clean; If the thermocouple is damaged due to aging, please contact the local gas company in time and ask professionals to come to repair or replace it.

4. If the air door is blocked, you need to clean the dirt on the stove yourself. After cleaning, the above situation will not occur.