Check the ordinary controls first
With no smoke, electrical damage, or other immediate hazard, check the normal thermostat display. Is it in Cool mode with a target below the room temperature? Is a schedule or hold changing that target? Note whether the indoor registers are moving air, not only whether the outdoor fan turns.
Follow the owner instructions for an accessible filter. If its condition needs attention, use the approved replacement and safe access method. Do not remove equipment panels or operate the unit without its required filter.
From a safe distance, note visible ice, unusual sound, or an outdoor unit obstructed by stored items or vegetation. Do not reach through the fan grille, open a disconnect, or probe wiring. You do not need to determine whether the compressor is running yourself.
Keep the spring timing in perspective
Tell the technician this is the first cooling use since winter and describe any heating service or control changes since the AC last worked. The seasonal timing is useful history. It does not prove a refrigerant leak, seized compressor, or failed electrical part.
We recommend finding the cause before deciding on replacement. An AC that worked last year but fails now needs a current finding, not a diagnosis from its age.
Carrier advises turning off cooling when it is not cooling and having a professional address persistent failure. If visible ice is present, leave it alone rather than chipping or heating it. Carrier safe next steps.
Ask for measured findings
Request an explanation of the cooling request, indoor airflow, outdoor equipment operation, and the tests appropriate to the model. If refrigerant work is proposed, ask what evidence supports it and whether a leak or another cause needs attention. “It needs a top-off” leaves the reason unresolved.
If an electrical part is proposed, ask which test showed it failed. A turning fan is not a substitute for checking the rest of the circuit. If replacement is proposed, compare its full scope with the repair supported by the finding.
Before the visit closes, ask what cooling operation was verified and what remains uncertain. If the outdoor conditions limit a valid performance check, ask when and how that check will be completed. Do not insist on running cooling outside the equipment's permitted conditions.
If the home becomes too hot for the household while waiting, arrange a suitable cooler place. Your next action is to report “outdoor fan runs, no useful cooling” with the settings and recent history, then request a diagnosis that explains the recommended work.