Freezer wont freeze

freezer wont freeze. air coming out. cleaned coils. still not working.

Is the compressor running?

dont know. how would i know. theres a light constant hum.

Unplug it for a minute, then plug it back in. It’ll sound like a purring mechanical sound.

yes, its working

Given its age, my first gess would be a low refrigerant charge. Can’t be certain without further information. You willing to remove the panel inside the freezer to look at the evaporator and report what you find?

yes. how do i remove it

i removed the back panel, but have no idea what im looking at. the fan is working. the radiator looking thing has a little frost on it in one corner. other than that, im lost

removed panel. fan is going. dont know what im looking at or for. radiator looking thing has frost on one corner. other than that…?