Tools That May Help
Before calling a professional, these common tools may help you check the issue safely.
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Problem
Your furnace blows cold air after being unused for a period.
Common Symptoms
- Weak airflow from vents
- System running constantly
- Uneven indoor temperatures
- Higher energy bills
Possible Causes
- Ignition issue
- Component wear
- Airflow restriction
How To Fix It
- Check ignition
- Inspect system
- Verify airflow
Safety Tip
Always shut off power to the HVAC system before inspecting wiring or internal components.
When To Call A Professional
If furnace fails after inactivity
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