The typical defect is that the burner program controller does not detect a sufficiently strong and continuous flame signal, which may be due to lack of fire or power failure of gas, failure to adjust the ratio of air and gas, weak flame signal, high gas pressure or large wind. The fire will be cut off as soon as the combustion of the burner stops, flue blockage or the combustion power of the burner is too large, and the fire is suppressed.

   Burner is defined as a kind of equipment that converts substances into heat energy through the chemical reaction method of combustion - air and fuel are mixed in appropriate proportion through premixing equipment to make them burn fully. Burner is a kind of thermal energy equipment that sends fuel and air into the furnace according to the required concentration, speed, turbulence and mixing method, and enables the fuel to ignite and burn stably in the furnace. The fuel is mainly fuel oil and gas. It is generally used in small and medium-sized oil or gas boilers.

   If the combustion engine has a defect. The ignition failure may be the combustion engine itself. For the sake of safety, do not consciously force the combustion engine to start, but ask professional technicians to clean up the defects before starting. Under normal conditions, if the combustion engine is started three times in succession and there is no burning, it shall be judged as a combustion defect, and the corresponding inspection shall be stopped to eliminate the defect.

   Air source defect: check whether the pressure of natural gas can be maintained at 3-5kpa normally. If it is too high or too low, there will be no ignition. Disposal methods; Regulate the natural gas pressure regulating valve and stop the pressure setting. Defect of damper: check the size of damper. When the damper is too large, it simply presents the phenomenon of repeated combustion failure, and the disposal method; Properly turn down the damper, but it can not be completely blocked.