There are many reasons, 1, Kangpai gas stove can't catch fire, probably because there is no gas. 2. It's probably because the battery of the gas stove is dead or the two sections of the battery are installed backwards. 3. It is probably because the ignition needle is too far away. It may be because the thermocouple of Kangpai gas stove is broken. Suggested solution: 1. If Kangpai gas stove has no gas, then if canned gas is used, you only need to buy new gas to replace it. If you use natural gas, you only need to use special software or platform to recharge it in time. 2. If the battery of the gas stove is dead, you only need to buy the battery of the same model and then replace the used battery. If it is because the two batteries are installed backwards, just open the battery cover and install the two batteries in the right direction. 3. If there is any deviation in the position of the ignition needle, just move the ignition needle to the vicinity of the tempering cover and aim at the fire hole, because we may accidentally move the ignition needle during the cleaning process, resulting in the gas stove being unable to ignite. If the thermocouple of Kangpai gas stove is broken, then you can only find a special maintenance master to repair it.