The reasons why the flake ice machine ice scraper cannot scrape off ice may include excessive salt water concentration, improper adjustment of the expansion valve, insufficient or leaking refrigerant, and loose ice blade bearings.

Excessive concentration of salt water: When the concentration of salt water is too high, ice flakes will stick to the inner wall of the ice bucket, which is not conducive to ice scraping with ice skates. The solution is to master the method and proportion of adding salt to the ice maker

Improper adjustment of expansion valve: Opening the expansion valve too wide can lead to an increase in cooling capacity, but the evaporation temperature is not enough to quickly condense the ice into ice. The expansion valve should be adjusted to the appropriate position.

Insufficient or leaking refrigerant: Insufficient or leaking refrigerant can cause a decrease in cooling capacity, resulting in thin or uneven ice formation, thereby affecting the ice scraping effect. The solution is to add an appropriate amount of refrigerant.

The condenser is dirty: If the condenser is dirty, it will affect heat dissipation, resulting in a decrease in cooling capacity and making the ice flakes too thin or unclean. The solution is to clean the condenser

The ice skate is broken: Check the ice skate bearings of the ice skate machine to see if the clearance of the ice skate is moving. A common problem is that the ice skate bearings are broken.