Improper cooling, electric current to compressor is too high activating a protective switch

1.Water level in cooling water tower is too low, raise water float height or increase water supply

2.Perform cleaning and maintenance on water tower and condenser

3.Air-cooled condenser is dirty.Please clean and perform maintenance

Airflow is too small, freeze prevention switch will be activated

1.Clean the air filter

2.Check the evaporator, if dirty, clean and perform maintenance

3.Excessive drag in air pipes, please increase pipe size or number of vents