The fog machine is not American DJ, but rather by chauvet...If this cannot be mentioned then feel free to delete.

The machine is chauvet 1700 hurricane. 2weeks old and worked fine until now. It only squirts the liquid. Any suggestions?

Also, which is a better effect a fog machine or a hazer?

cannot offer advice as it is a different brand. But sounds like a problem with the nozzle. Also haze is GREAT for lights but will also set off fire alarms just as easily as fog. Sincerely,