What is the reason why the water heater goes out when it is ignited?

There may be many reasons why the water heater goes out when it is ignited. The following are possible reasons:

1. Throttle problem: Some water heaters need to open the throttle after ignition to run continuously. If the throttle is not fully opened or fails, it may cause the water heater to go out immediately after ignition.

2. Ignition device problem: The water heater needs a reliable ignition device to ignite the fuel. If the ignition device is damaged or defective, it may cause the water heater to go out immediately after ignition. You can check whether the ignition electrode has sparks or whether the ignition electrode is clean.

3. Insufficient air supply: When the air supply of the water heater is insufficient, the water heater may not be able to ignite continuously or even go out immediately. This may be caused by blocked gas pipeline or insufficient gas pressure.

4. Sediments and corrosion problems: After long-term use, deposits and corrosion will form inside the water heater, which may lead to problems in the water heater. If this happens to the water heater, it can be solved by cleaning and replacing parts.

5. Safety restrictions: Water heaters usually have some safety restrictions, such as temperature controller, limiter and overvoltage protection. If any equipment fails, it may cause the water heater to turn off immediately after ignition.

These are the reasons that may cause the water heater to go out immediately after ignition. If you encounter such a problem, you can try to find out and solve it. If the problem is serious, it is best to ask professionals to repair it.