Air conditioner runs but does not cool the room effectively; air from the vents is only slightly cool or room-temperature.

Safety: Unplug the unit before cleaning coils or filters.

Steps:

• Clean the air filter: Remove and wash the filter with warm soapy water. Dry completely before reinstalling.
• Clean evaporator coil: Remove the front grille and gently brush or vacuum dust from the indoor coil. Use a non-rinse coil cleaner if heavily soiled.
• Clean condenser coil: Access the rear of the unit and clean the outdoor coil fins with a soft brush and vacuum. Straighten bent fins with a fin comb.
• Check room size and conditions: Ensure the Hotpoint unit's BTU rating matches the room size and that doors/windows are closed and well-sealed.
• Observe compressor operation: Listen for the compressor starting and running steadily. If the fan runs but the compressor never starts or cycles rapidly, there may be a refrigerant or compressor issue.

When to call a technician: If cleaning and proper sizing do not restore cooling, a professional should check refrigerant charge, compressor health, and the sealed system.