What is the reason why the commercial kitchen freezer is not refrigerated and how to repair it

The reason for this should be its quality problem, you can take it to the after-sales service to repair it, or replace it with a new one.

Because it was a place with high oil smoke, it should have been oil in the motor, and then the rotor was glued to death and stopped turning. You're going to have to remove it, wash it with gasoline, dry it and add a little oil to it and you're ready to turn.

If it is a commercial building, the flue may be unreasonable because of cutting corners and using a single-layer flue, resulting in smoke return.

First close the main gate of the water pipe into the house, which section has a problem, just replace that section, switch the valve leakage and change a switch; >>>More

It may be that there is too much oil stain and rust on the exhaust fan. The first thing to do is to disassemble the exhaust fan and clean it. >>>More