If your AC is cooling to 62 degrees Fahrenheit (16.7 degrees Celsius) even though it is set to a higher temperature, there could be several possible explanations for this issue:
Thermostat malfunction: The thermostat is the device that controls the temperature settings of your AC. If it is not functioning correctly, it may not accurately read the room temperature or properly communicate with the cooling system, leading to erratic behavior.
Sensor issues: Air conditioners have temperature sensors that detect the current room temperature. If these sensors are faulty or dirty, they may not provide accurate readings to the AC unit, causing it to cool excessively.
Airflow problems: Obstructed or restricted airflow can cause the AC to cool too much. Check if there are any obstructions around the vents or if the air filter is clogged, as it can impede proper airflow.
Refrigerant leaks: Low refrigerant levels can cause the AC system to overwork and cool the air beyond the set temperature. A refrigerant leak is a serious issue and requires professional repair.
Incorrect unit sizing: If the AC unit is too large for the space it is cooling, it may cool the room too quickly, overshooting the set temperature before shutting off.
Programming issues: If your AC has programmable features, ensure that there are no conflicting or incorrect settings that are causing it to cool to 62 degrees.
Remote control interference: In some cases, other electronic devices emitting infrared signals, like remote controls or nearby electronics, can accidentally send signals to the AC unit, changing its settings.
To troubleshoot and resolve the issue, consider the following steps:
Check the thermostat settings and ensure it is functioning correctly. If needed, replace the batteries or recalibrate the thermostat.
Clean the temperature sensors and ensure they are not obstructed by any objects.
Inspect the airflow, vents, and air filter. Clean or replace the filter if it's dirty.
If you suspect a refrigerant leak or any other mechanical issue, contact a professional HVAC technician for inspection and repairs.
Double-check the programming settings and reset the AC to its default settings if necessary.
Keep electronic devices that emit infrared signals away from the AC unit to prevent interference.
If you have tried these steps and the problem persists, it's best to seek assistance from a qualified HVAC technician who can diagnose and fix the specific issue with your AC system.