The clicking sound may also come from the external AC component known as the condenser unit. However, if the contactor has gone bad, it can’t execute the command and start the AC. Once the thermostat sends the cooling command, the contactor activates the compressor. The contactor is located in the outdoor unit and acts as a mediator between the compressor and the thermostat. Turn the system back on only when it’s safe to avoid fire hazards or electrocution. If you notice any sparks, shut down the AC immediately and reach out to a trusted HVAC company. These signals also cause the switch to turn on and off repeatedly, preventing the appliance from delivering optimal comfort. Over time, it can produce faulty electrical signals that generate clicking sounds and small sparks. Damaged control panelĪs the AC ages, so does the control panel.
#AC COMPOSITOR PROFESSIONAL#
Hire a trained professional to confirm this and recommend a suitable replacement. If the clicking persists until the AC is manually shut down with the thermostat, the controls should be fine, but other parts of the system are likely refusing to do their job.įor instance, if the clicking is accompanied by rumbling, water leaks, or freezing, the AC might be on its last legs. More specifically, the thermostat, control board, or capacitor might be malfunctioning. If the AC produces a loud click as you turn it on, the controls may be the culprit. The rest of the system is likely under immense strain and will require extensive repairs. But if the problem has gone on for a while, the damage might be more significant. It typically requires a blade replacement or a minor fix. Repetitive clicking happens when an AC fan blade is blocked, broken, or bent. Regardless of the source, it needs to be inspected as soon as possible to prevent the problem from escalating. If the AC clicks only at startups and shutdowns, it usually indicates a malfunctioning motor, fan, or switch controlling the compressor. Here are the most common problems: Failing motor or relay switch The severity of the issue depends on the source of the clicking. Besides annoying the residents, these kinds of noises can also be a cause for concern. Any clicking sound coming from the systems can be a huge red flag. Efficient and correctly installed AC units are meant to operate without strange noises.
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