Trane
Low Airflow
The furnace runs, but airflow from the registers 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 evaporator coil above the furnace, blower wheel clogged with dust, undersized or restricted ductwork
How to Fix / Troubleshooting
Steps to check:
- Filter: Replace the furnace filter.
- Registers: Open all supply and return registers fully.
- Blower wheel: Inspect the blower wheel for dust buildup and clean if accessible.
When to call a professional: Cleaning the evaporator coil and evaluating duct design should be done by a technician.
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Repair Difficulty
Medium
3/5
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