Why Is My Heat Pump Running But Not Cooling Properly?

Your heat pump is likely running but not cooling due to poor airflow, incorrect thermostat settings, or a refrigerant/defrost issue. Our technicians diagnose and repair all brands and can advise on replacement if needed.

Quick checks:

• Replace/clean the air filter.
• Set thermostat to Cool and lower the setpoint.
• Clear debris around the outdoor unit (2–3 ft clearance).
• Confirm breakers are on; look for ice on the lines.
• Schedule seasonal maintenance to prevent repeat issues.

We offer semi-annual maintenance and expert repairs, plus a free onsite consultation and install estimate for new systems. Members in our Total Comfort Service Plan get same-day service on requests before 12:00 PM, with parts and labor included.

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Updated: 2025-11-05 00:00:00

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Need help in Marietta, GA? Call 770-341-2178 or book online.

"I would immediately ask for Moncrief’s team to work with me again if needed!" — David H.