How to Tell Your Heating and Cooling Service Provider What Sound Your System is Making Posted May 4, 2017 Your system has a collection of sounds that it usually makes. All in all, they should go unnoticed. If your system is making strange or disruptive sounds, you should call in a professional for a service visit.Listen carefully to the things you’re hearing, turn off your system and call in pros like McNatt Inc. Your system might simply have a loose part. The noises could also be an signal that larger repairs are necessary. If you know how to define the sounds your system is making, you can help your service professional work out a solution.Here are some common sounds that indicate a need for heating and cooling service:Repeated clicking—You can hear a clicking sound when your system turns on and off, if you listen carefully. This is natural. However, if you hear this sound repeatedly, you likely need a heating and cooling service appointment to find out if it’s a problem with the system’s relay or its electrical control.Rattling, banging, clanking or thumping—Rattling usually means a loose piece. Strong banging or thumping sounds could mean a component of your system is totally broken or disconnected. Regular maintenance can prevent some of these noises from ever starting. If you schedule maintenance appointments with McNatt Inc, we can identify and repair potential problems before they can get worse. Give us a call at 361-247-0605 or use our convenient online scheduler to make your appointment.