Always turn it off when the speed is slow.

Hehe, you are not from Dongying, are you?

First of all, you can't use natural gas to cool the car directly in winter. You have to heat it with gasoline for a while before the car can switch.

You said the light was on because it was off. This is normal.

Slow speed, flameout is the problem of the air pump, you'd better find a master who knows how to adjust the air pump.