Why Is My Heat Pump Running But Not Cooling Properly?

Your heat pump may run but not cool due to wrong thermostat mode, a clogged filter, low refrigerant, iced outdoor unit, or duct airflow issues. Common signs are weak airflow, frequent cycling, unusual noises, higher energy bills, foul odors, or ice buildup. We provide diagnostics, repairs, and free HVAC assessments and estimates in Los Angeles-area homes.

Quick checks:

• Set thermostat to Cool and a temperature below room temp.
• Replace or clean the air filter.
• Clear debris and thaw ice by turning the unit off.
• Open supply vents and check breakers.

Updated: 2025-11-05

Need help in Chatsworth, CA? Call (818) 330-3351 or book online.

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