• Check if the air cap is fully opened.
•  If the weather is cold, the inside of the machine may be frozen and spraying may not be possible. Try putting it in a warm room for a few hours before using it
•  The strainer connected to the water nipple may be clogged. Submerge the strainer in chemicals you would typically use to clean the toilet or kitchen drain. Let it sit for 1 hour then rinse with clean water.
•  If you are still unable to spray, replace the check valve.

Please contact us to assist you with the spare part replacement.