American Standard
Airflow Imbalance / Duct Issues
The furnace runs but some rooms are too hot while others are too cold.
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Possible Causes
Closed or unbalanced supply dampers, leaking ducts in the attic or crawlspace, undersized return in certain zones, improper blower speed setting on an American Standard furnace.
How to Fix / Troubleshooting
Safety: Use caution in attics and crawlspaces.
- Adjust dampers:
- Open registers in cold rooms and slightly close them in hot rooms.
- Inspect ducts:
- Seal visible leaks with mastic or UL-181 foil tape.
- Have an HVAC professional perform duct balancing and blower speed adjustment if needed.
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Repair Difficulty
Easy
2/5
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