I have a small magic chef freezer that opens from the top. I has about 3 or 4 cu. ft. of freezer space. Lately a buzzer has been going off every 15 or 20 minutes. It buzzes for about 5-10 seconds and then the buzzing stops. The freezer works fine. The buzzing seems to have started when I made the freezer colder (below 0 ). I have adjusted back to my normal No. 2 setting and the buzzer still goes off periodically. As I said the freezer still keeps the contents at about 0 degrees and works fine. What is the periodic buzzing, a warning?

SOURCE: its keeps peeping

Hello twins49
Welcome to Fixya,

You said, your Frigidaire freezer 17 cu. ft. , it keeps buzzing or peeping
The alarm may be malfunctioning or it may be warning you of low temperature.
You can go to any hard ware store and buy a refrigerator thermometer and ask them if it can go into a freezer too!It can, But ask anyway!

If it is cold enough then it is a faulty alarm going off.

Your freezer may be equipped with an alarm.
Here is some information that may help you find it and turn it off if you wish

Temp Alarm (audible only or audible with warning light)
This feature is designed to provide a warning of possible malfunction. If the
temperature of the food rises to a level unsafe for long-term storage, the buzzer will
sound. The red light will also glow on models so equipped. The Temp Alarm feature
operates on household electricity. If power fails, the alarm will not perform. An ON/
OFF switch allows you to deactivate the Temp Alarm when not wanted. The freezer
is shipped with Temp Alarm in the OFF position. After freezer has run approximately
4 hours, the red light, if equipped, will go off. Then you may activate the Temp Alarm
without the alarm sounding.
Press the ON switch to activate the Temp Alarm. To deactivate, press the OFF switch.
If the alarm sounds, be sure freezer is properly leveled, and the door closes freely, and
seals properly. If you suspect a technical malfunction, call an authorized servicer
immediately.

Let me no what you find.
Huuum
Please remember to leave a rating before you leave

SOURCE: MAGIC CHEF FREEZER THE DOOR IS NOT OPENING FOR 8.8

If You run Your finger in between the rubber seal that is resting on the freezer and the frame of the door , the rubber seal will break lose. When you open the door the seal is attache to the door.
Just had the same problem after unboxing.
Simple, just be sure to do the entire door.