Tools That May Help
Before calling a professional, these common tools may help you check the issue safely.
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Problem
Your HVAC system makes a loud banging sound.
Common Symptoms
- Weak airflow from vents
- System running constantly
- Uneven indoor temperatures
- Higher energy bills
Possible Causes
- Loose components
- Duct expansion
- Internal damage
How To Fix It
- Check unit
- Inspect ducts
- Tighten loose parts
Safety Tip
Always shut off power to the HVAC system before inspecting wiring or internal components.
When To Call A Professional
If banging persists or worsens
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