1, fuel tank without
Check that the fuel in the tank is sufficient, such as a shortage of oil, add fuel
2, pipe blockage or damage
Check that the tubing is clogged with impurities, whether the connections are properly connected, if there is, please repair or replace
3, fuel condensation plug tubing
Check that the fuel is condensed, if so, replace the appropriate environment of low temperature fuel oil
4, the exhaust pipe is not smooth or jam
Check that the exhaust pipe is blocked, smoke is smooth, and if so, please clean up
5, controller failure
Replace the controller