Noteworthy is the condenser cleaning, which is the most easily ignored by most customers.
Condenser is the freezer compressor next to the device used for heat dissipation, generally a circle a circle S-shaped plate together, equipped with fans to dissipate heat. Due to the general use of commercial freezers environment is more complex, more oil and smoke. Over time, the condenser will have a large pile of grease and dust. This significantly reduces the cooling performance of the freezer, resulting in the compressor keeps running but can not achieve the cooling effect, the freezer both power consumption and not cooling. It is recommended that you 3 months on the condenser for a clean.