Freezer not cooling at all; interior is room temperature and compressor is not running.

Safety warning: Use caution when working with electrical outlets. If you are not comfortable, contact an electrician or technician.

Steps to troubleshoot no-cool, no-run:

• Verify power supply: Plug a lamp or small appliance into the same outlet to confirm it has power. Reset any tripped breakers or replace blown fuses in the home panel.
• Check power cord: Inspect the Summit freezer's power cord for cuts, burns, or kinks. Ensure the plug is fully inserted into the outlet.
• Confirm interior lights/control: If the interior light and display are dead, suspect a power issue or internal fuse. If lights work but compressor never runs, suspect the control or compressor circuit.
• Inspect main control board: Unplug the freezer, remove the control cover (often at the rear or top), and look for burnt components or a blown onboard fuse. Replace the fuse only with the same rating if accessible and clearly blown.
• Replace main control board if failed: If there is visible damage or no output to the compressor and fans, install a Summit-compatible control board, transferring connectors one at a time.
• Restore power and test: Plug the unit back in and listen for the compressor and fan to start within several minutes.

Note: If the outlet has no power or is loose, have it repaired by a qualified electrician.