Is the thermostat stopping cooling, or is the equipment stopping itself?
Watch the displayed set temperature and mode when the stop happens. A scheduled setting change is a useful clue. If the call for cooling remains but the equipment stops, report that difference without guessing at a failed part.
Avoid repeated restart attempts
If stops come with smoke, burning odor, ice or water, stop using the system and address the hazard first. Otherwise, leave settings steady while you make a brief record of what happens. Repeatedly lowering the set point adds another variable.
There is no single normal cycle length for every home and weather condition. Report what changed and whether the home still feels comfortable.
Compare settings with the sound
Record the time of a start and stop, the room reading and whether the target changed. Check the normal user menu for a schedule, hold or away setting. Do not enter installer settings or change wiring.
An app alert is not the same as seeing the outdoor compressor stop. If the only detail is indoor fan noise, say so. A running fan does not prove the air is being cooled.
Identify who controls the schedule
Give the street address and unit number for a North Naples request. The County district name cannot identify your AC. If the property has a manager, find out who may change the schedule: the owner, tenant or manager.
If more than one person has app access, note any changes they remember making. Keep account passwords private. A technician can check the controls without receiving a shared personal login.
Test the explanation before replacing controls
A schedule explanation should fit the observed setting changes. If it does not, the diagnosis may need to consider airflow, refrigerant conditions or electrical controls. A new thermostat will not fix every cause of frequent stops.
Ask how the repair will be checked while the AC runs. If the room feels cool but damp, say so. The temperature alone does not describe that problem.
Questions about this repair
Should I factory-reset the thermostat first?
Save the settings and fault history. A reset can remove useful context and may require setup for your system.
Can a short run ever be normal?
Yes. Load and weather affect runtime. Report a change from usual behavior and failure to meet comfort, rather than relying on a stopwatch alone.