Leaving a freezer door cracked open for 24 hours is unlikely to burn out the compressor if no ice build-up was formed. However, it can lead to increased energy consumption and potentially affect the performance of the freezer.
When the freezer door is left partially open, warm air from the surroundings enters the freezer compartment. The freezer's cooling system will have to work harder to remove this excess heat and maintain the desired low temperature. This increased workload on the compressor can result in more extended operating cycles and higher electricity consumption during that time.
If no ice build-up occurred, it suggests that the freezer's cooling system was capable of handling the extra heat introduced during the 24 hours, and the defrost mechanism (if the freezer is frost-free) or manual defrosting (if it is not frost-free) prevented any ice formation. Nonetheless, running the compressor for longer periods than necessary can contribute to wear and tear over time, potentially affecting its lifespan.
To ensure the optimal performance and longevity of your freezer's compressor, it is best to avoid leaving the door cracked open for extended periods. Always double-check that the freezer door is closed properly after use and make sure that the door gasket (the rubber seal around the door) is clean and undamaged to ensure a tight seal. If you notice any issues with the door's sealing, address them promptly to prevent unnecessary strain on the compressor and to maintain the efficiency of your freezer.