When a compressor does not start, what should be checked first?

When troubleshooting a situation where a compressor does not start, the first step is to check fuses and power supply. This is crucial because a compressor needs a proper electrical supply to function. Checking the power supply ensures that the necessary voltage is reaching the compressor, and verifying the fuses confirms that there are no blown fuses interrupting the electrical circuit.

If the compressor is not receiving power due to an issue with the electrical supply or a blown fuse, it will not operate regardless of other factors such as refrigerant levels, temperature settings, or compressor oil. Therefore, by addressing the electrical components first, you'll be able to quickly determine whether the issue is related to power, which is a fundamental requirement for the compressor's operation.