Evidence-based air conditioner diagnosis

Air conditioner not cooling

Check mode, set point, filter, airflow, installation, and icing before service.

Stop immediately for smoke, burning odor, sparking, gas odor, a melted plug, or water near electrical parts.

Before you begin

Choose the exact appliance model

Select a verified model when available. If yours is not listed, you can use general checks, but model-specific teardown instructions stay locked.

Exact-model follow-up

Published air conditioner guides

Primary sources

Check the evidence

  • Air conditioner not cooling well
    GE Appliances · accessed 2026-09-16

    GE lists room sizing, blocked airflow, ambient temperature, dirty filters, and dirty coils as cooling checks.

  • Recalls & Product Safety Warnings
    U.S. Consumer Product Safety Commission · accessed 2026-09-16

    Recall remedies and stop-use instructions override general troubleshooting.

  • CPSC Issues Winter Safety Warning
    U.S. Consumer Product Safety Commission · accessed 2026-09-16

    CPSC advises people who smell gas to leave the area immediately and obtain assistance.