Your appliance won’t most likely turn off because of a stuck relay keeping the circuit closed. Check the contactor relay switch. This component "tells" the air conditioning fan to shut off once the thermostat reaches a reading equal to the temperature setting. Turn the air conditioning unit's breaker off at the main electrical panel. Remove the access panel with a screwdriver. Test the contactor with a multimeter to see if it works. If it’s not the relay, your thermostat likely has a shorted cable or needs to be replaced. Firstly, check to see if your thermostat has been flipped to "on" instead of "auto". When it has, continue a diagnostic. A faulty thermostat can cause your AC fan to run constantly by not knowing when the desired temperature has been reached. If the actual room temperature is below what your thermostat is set for, there’s a good chance you’re due for a repair or replacement. Such mishaps as the stuck fan relay or bad thermostat need professional maintenance. Trying to fix electrical problems on your own could cause more damage or even create a fire hazard. Some problems are possible to fix only with the right tools and skills, so to keep the warranty valid and unit functional, it is in your best interest to arrange a repair technician visit as soon as possible.

November 26, 2023
AC is leaking from the coil – HVAC Troubleshooting in San Diego
Have you encountered a leaking air conditioner? This causes not the most pleasant feelings and deprives you of comfort. Before solving this problem, you should determine what exactly became the source of the air conditioner flow.