Low-temperature refrigeration circulation chiller are quite common in laboratories and widely used. As a common experimental instrument, it helps various equipment provide cooling.
Not cooled or cooling speed is slow.
Check whether there is any dirt attached to the condenser. Remove the soft brush and clean it, or use a special condenser cleaning solution.
If the cooling speed is still slow or does not cool down after cleaning, check for refrigerant leaks.
Fan not working.
Check if the fan power cord is connected.
Whether the fan is stuck. If it is stuck, adjust the position in time.
Check whether the fan blades are damaged.
Check whether the fan is burnt out.