Gas valve is closed, but the gas alarm suddenly rang, how is it?
Where it should be leaked, such as leather pipe joints, etc., you can try with soapy water. There are kitchen waste than the kitchen can also produce methane, but trace (unless your alarm is particularly sensitive)
2) indoor tasteless, turn off the alarm and then open the alarm to see if the alarm again? Window ventilation for some time off the window in the experiment to determine the reliability of the alarm.
1) gas alarm failure, 2) there are excessive gas in the room, 3) pipe fittings and other leaks, treatment methods: 1) Nose smell really have no gas taste, there are off the alarm, open the window ventilation, to determine the tasteless Close the doors and windows, and then open the alarm to see if the alarm again? Alarm has a leak.
