Air Conditioning Unit Inspection Checklist

Ensure all wiring connections are secure and not corroded, loose, or damaged, which could cause overheating or failures.

Measure voltage and amperage draw of the compressor and fan motors to ensure they are operating within manufacturer specifications.

Test capacitors for proper microfarad ratings and check contactors for pitting or burning, which can indicate wear and potential failure.

Inspect the circuit breaker and fuses to verify they are correctly rated for the AC unit and not showing signs of frequent tripping.

Ensure the unit is properly grounded to prevent electrical shocks or damage due to power surges.

Check the thermostat connections and test its operation to confirm it is communicating correctly with the HVAC system.

Inspect electrical connections, wiring insulation, and motor performance for signs of overheating or excessive wear.

Look for melted wires, burnt connectors, or discoloration around terminals, which can indicate electrical issues.

Verify if the unit is connected to the proper safety disconnect switch and if any Ground Fault Circuit Interrupter (GFCI) protection is needed.

While electricians don’t handle refrigerant levels, they may check for electrical issues affecting compressor operation, such as relay failures.

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