The gas alarm is a safety protection device to prevent gas leakage, once there is an accidental gas leak in the home, it will automatically turn off the gas and sound an alarm and flash yellow or red lights to attract people's attention. Sometimes we will find that the green light on the gas alarm will also flash and flash, which is the normal situation? Is there a gas leak or a broken alarm? Let's talk about this issue for you.
First of all, we observe the gas alarm, generally there will be three indicator lights, green, yellow, red, some gas alarm indicators will have text prompts, green is the power indicator, when the power is turned on, it will light up; Yellow is the fault indicator, which will light up and flash when the alarm is faulty; Red is an alarm indicator that flashes when a certain concentration of gas is detected. As shown in Fig
Normally, the green light will light up as long as it is plugged in, it will not flash, it is just a power indicator. In this case, the green light flashes, which may mean that the internal wiring of the gas alarm is faulty, which is an abnormal phenomenon.
However, most gas alarms have an automatic calibration function, which is the function represented by the test button. Generally, after the gas alarm is connected to the power supply, it will first perform a self-test to ensure that each sensor is reset to zero, and the power light will flash at this time. Then if the green light flashes in this case, it is normal. When its self-test ends, the power indicator will remain solid.
From this, we can also conclude that the green light of the gas alarm, if it flashes in the case of self-inspection, it is normal, and if it has been flashing, then it is abnormal and needs to be replaced or overhauled in time.