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our HVAC system often gives off warning signs before it fails — and catching them early can save you hundreds in repair costs or system replacement.
Here are five red flags to look out for:
Unusual Noises
Grinding, squealing, banging, or clicking can all indicate mechanical failure, loose components, or worn parts.Poor Airflow
If some rooms feel cooler or hotter than others, it could be duct issues, a clogged filter, or a failing blower motor.Inconsistent Temperatures
Constant thermostat adjustments might signal sensor problems, refrigerant leaks, or a malfunctioning compressor.Spike in Energy Bills
If usage habits haven’t changed but your bills have, your system may be running inefficiently or leaking air.Strange Smells
Musty smells = mold. Burning smells = electrical problems. Either should prompt immediate inspection.
If you notice any of these symptoms, don’t wait — contact a licensed HVAC technician to troubleshoot the issue before it becomes worse (and more expensive).
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