Solutions: If the problem lies in control board, replace it; if lies in compressor itself, replace it or its accessories.
Unstable temperature
Internal temperature does not reduce, but rises, e.g. rises to
Solution: Clean the condenser
Cause 2: Slowdown of fan speed
Solution: Replace the fan
Cause 3: The freezer is extremely close to a wall
Solution: Move it far away from the wall for good ventilation
Cause 4: The freezer is placed in a closed narrow space
Solution: Install an
Cause 5: The freezer is not left still for a sufficient time and is energized before its system reaches stable state, resulting in the problem of “oil beating” taken place in the compressor.
Solution: Turn off the freezer, leave it still over 24 hours, and then turn it on, gradually reduce the temperature setting from
Cause 6: The samples loaded at a time are over 1/5 of the freezer’s effective capacity, or the samples loaded are too hot (20℃ higher than the temperature setting, e.g. the samples temperature is
In this case, it is the fault of user for he/she uses the freezer as a quick freezer. However, the appliance is a SLT freezer for maintaining the low temperature of articles with only a little refrigeration and requires all the articles to be cooled down to basically equal temperature before being put into it. If the user fails to follow instructions described in this manual, the continuous