What should I do if the freeze dryer is not working?

What should I do if the freeze dryer is not working?
Freeze dryer technology has a wide range of applications in the fields of bioengineering, pharmaceutical industry, food industry, materials science and deep processing of agricultural and sideline products. So what are the advantages of freeze-drying technology? Xiaobian is here to introduce you one by one.
1. During the process of the freeze dryer, the growth of microorganisms and the action of the enzyme cannot be carried out, so that the original sex can be maintained. Since the drying is carried out in a frozen state, the volume is almost constant, the original structure is maintained, and concentration does not occur.
2. Since drying is carried out under vacuum, there is very little oxygen, so some easily oxidizable substances are protected.
3. Drying can exclude more than 95-99% of water, so that the dried product can be preserved for a long time without deterioration.
4. After drying, the material is loose and porous, and it is sponge-like. After adding water, it dissolves quickly and completely, and immediately restores the original trait.
5. The freeze dryer is operated at low temperatures and is therefore particularly suitable for many heat sensitive materials. Such as protein, microorganisms and the like will not degenerate or lose biological vitality. Therefore, it is widely used in medicine.
6. When drying at low temperature, some volatile components in the material have little loss, suitable for some chemical products, medicines and foods to be dry.
So what should I do if the power is not turned on when using the freeze dryer?
Cause: The input line has no voltage or the voltage is too low.
Countermeasure: Check the incoming power switch, fuse and troubleshoot
Cause: The high voltage protection switch is disconnected
Policy: Reset Cause: The wiring is loose
Countermeasure: check wiring and tighten
Cause: Compressor motor burned out
Countermeasures: check, replace
Cause: AC contactor is damaged
Countermeasures: check, replace
Cause: Refrigerant leak in a refrigerated dryer
Countermeasures: leaking, trapping, adding refrigerant
Cause: The automatic air switch is not turned on
Countermeasure: Turn on the automatic air switch