additional info an HVAC technician to test it out and provides you relief.✅ RELAY ISSUE: A repetitive clicking sounds in your HVAC implies there’s a problem inside the relay process during the thermostat that regulates the air temperatureA loud banging sound can be a sign of the break from the coil, which can be a pipe that receives incredibly hot and transfers the heat from In the home to the skin. If a damaged coil isn't changed immediately, you could possibly find that your HVAC unit not is effective in any respect.For those who hear a substantial-pitched whistling sounds coming from your HVAC system, it could be an indication resource of limited airflow. This may happen on account of clogged filters, filthy condenser coils, or issues Using the blower motor.Addressing these noises promptly may also help prevent even further damage and make certain your AC operates efficiently.