Tempstar air conditioner causes certain rooms to be much warmer than others

Safety first: Be cautious when entering attics or crawlspaces to inspect ducts.

Steps:

• 1. Open all vents: Ensure supply registers in warm rooms are fully open and not blocked by furniture.
• 2. Check returns: Make sure return grilles are not blocked and doors can close without sealing off return paths.
• 3. Inspect accessible ducts: Look for disconnected or crushed ducts near the Tempstar air handler.
• 4. Consider balancing: A technician can adjust dampers and evaluate duct design for better balance.