Magic Chef HMCF7WI is the green light suppose to go off ?

read the user manual
the light may only come on when the compressor is working
talk with a service agent for the unit and ask them

same as last post... I not 100% sure but believe this is the power light so it should remain on when the freezer calls for cooling and go off when satisfied. If the chest wont stay cold then it sounds like the stat is gone. If it is digital, there may be a power card issue but most chest freezers are run on a standard thermostat with the capillary running up into the base of the unit.

No check your settings. You may try to unplug it for about a minute and then restart. If that doesn't work, call the mfr. they should help since it is new.

Check your outlet with something else that will work, like a radio. If the green light does not come on, then check the wiring. The green light should be on even if the freezer has reached it's temperature. That is simply a light to indicate that power is at the receptacle.

Is it a red light? If so it's not reaching temperature (the alarm is about -12c) If it's a yellow light, you've accidentally switched on "fast freeze". If it's a green light it's just the power supply light.

You can't fix a leak yourself, you need a technician. Are you sure it is a leak, not the compressor not running? try it on fast freeze and take a view on calling out an expert. It is usually cheaper to get a new freezer.

It is short of refrigerant. Needs leak repair, vacuum and new gas. Or new freezer!

Compressor may be bad. You can try replacing starting device that plugs into side of compressor

http://www.mcappliance.com/document/MCCF5WBX.pdf
i read the entire manual and even type in the words "quick freeze" in pdf. find space and it is not in there.
heres the link read it for yourself
it only mentions green light and red light.
The “POWER” light (Green) indicates that the freezer is properly connected to the electrical power.
The “RUN” light (Red) will not illuminate when the unit is operating below freezing.
The “RUN” light will illuminate when the temperature inside the unit increases above freezing. Please
be advised that the “RUN” light may come on for a period of time when the lid is opened, when new
items are stored inside the unit or when the lid is forced open by irregular contents.
Do not call for service unless the “RUN” light has remained on for 6 hours or more. If this light stays
on continuously for a period of 6 hours, please contact our Customer Service Dept. to consult with a
representative at 888 775-0202 or visit our website to request warranty service at www.magicchefewave.
com.

If a defrost system is not working you will get, either no cool or frost build up.