Ruud
Restricted Airflow
Furnace runs but airflow from vents is weak.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Dirty filter, Dirty blower wheel, Collapsed or blocked duct, Closed dampers or registers
How to Fix / Troubleshooting
Safety: Turn off power before removing blower assembly.
Steps to check:
- Replace filter: Install a clean filter.
- Open registers and dampers: Ensure all supply and return openings are unobstructed.
- Inspect blower wheel: Look at the blower wheel blades for heavy dust buildup. Cleaning typically requires removing the blower assembly and should be done carefully to avoid unbalancing the wheel.
- Check ducts: In accessible areas, look for crushed flex duct or disconnected sections.
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Repair Difficulty
Medium
3/5
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