Troubleshooting your Hardwick upright freezer when interior lights don't work
If your interior lights don't turn on when you open the freezer door and you already replaced the light bulb, then the door switch may have failed. Unplug the freezer and test the door switch with a multimeter. Replace the door switch if it failed.
Some upright freezers use LED's to light the interior compartment. If an LED light board doesn't light up when activated, replace the light board.
Faulty lighting system wiring also prevents interior lights from working. Replace or repair any damaged wiring in the lighting system.
How to deal with a noisy Hardwick upright freezer
Excessive frost on the evaporator can interfere with the rotating evaporator fan blade, causing a loud buzzing noise inside the freezer compartment. If you hear buzzing and the noise gets louder when you open the freezer door (indicating the noise is coming from inside the cabinet), check for excessive frost inside the freezer. If you find excessive frost inside the freezer, find and repair the cause to eliminate the buzzing noise.
A leaky door gasket can cause excessive frost to build up inside the cabinet and on the evaporator. Replace the door gasket if damaged. Manually defrost the freezer by safely storing food and unplugging the refrigerator. Prop the freezer door open and allow room-temperature air to circulate through the freezer cabinet to defrost the evaporator. After 24 hours, close the freezer door and plug the freezer back in to restore cooling. If the noise resumes, then you may need to replace the evaporator fan because its blade is damaged.