6 Best Wall Air Conditioners | We spent 34 hours on research, videography, and editing, to review the top selections for this wiki. They are not just ideal for cooling and heating conservatories, attics, basements and other unfinished spaces, although they do all of that particularly well. Our comprehensive selection of wall air conditioners can also lend a hand to an older or undersized central a/c system, and ensure you and your family live in comfort all year round. Pioneer Ductless Mini Split auto restarts in case of power failure may require professional installation coverage for 550 square feet three fan speeds with an auto option 7 year warranty on compressor insulated copper line includedAlthough they differ in installation, wall and window units operate in similar fashion. During the hottest days of summer, turning your air conditioner on only to be met with warm air, gurgling water or unsettling rattling is anything but cool. While complex mechanical repairs call for assistance from the pros, you can address some wall-unit woes with simple, universal troubleshooting measures, whether you have a through-the-wall unit, a window unit mounted in the wall or a split, ductless style AC.

Before making any moves, always consult the owner's manual. Ensure that your AC wall unit is securely plugged into an operational electrical outlet, if the unit's plug is visible. Check your circuit breaker for a blown fuse and replace the fuse if necessary. Replace the batteries in your AC unit's remote control, if it has one. Through-the-wall and ductless, split AC systems often include these accessories. Clear any items that may block airflow near the interior front side of the air conditioner, such as curtains, drapes, blinds or large furniture. Likewise, close any open windows or doors. Disable your unit's "quiet" or "super quiet" setting, if it has one. These settings reduce noise by reducing fan speed, which reduces cool air distribution. Power down your AC and remove the air filter, the mesh-like panel under the front grille of its interior side. In some through-the-wall and ductless systems, you may have to remove the front panel to access the filter. Wash the filter with warm, soapy water;

allow it to air-dry completely before reinstalling it. For optimal operation, clean your AC's air filter monthly. Remove the front panel of the AC and use a wet-dry shop vacuum with a brush attachment to gently vacuum the interior compartment of the machine, focusing on key components such as the evaporator coils and fan blades. As is the case with the air filter, clean components make for smooth AC operation. Inspect the intake and outlet grilles on either side of through-the-wall or split, ductless units for debris -- such as leaves or twigs -- and clear the debris by hand or with a vacuum. compressor of ac unitSometimes a clogged condenser causes the AC to emit warm air; what is outdoor ac unit calledbecause condensers expel heat to the exterior of the building, a blockage means the warm air has nowhere to go but inside. ac unit bracket

If your split, ductless AC has a separate, box-like exterior unit, clear debris from the outlet grills on this unit. Tip Warning References Canoga Park Heating and Air Conditioning: Three Common Repair Problems With a Window AC UnitTrue Home: Three Air Conditioning Repair Troubleshooting TipsHorizon Services: The Horizon Comfort Zone -- Troubleshooting Your Window Air ConditionerGE Appliances: Air Conditioners -- Window Unit Not Cooling WellRepairClinic: Air Conditioner Not Cold EnoughGE Appliances: Air Conditioners -- Water SoundsRepair Clinic: Air Conditioner Is Loud or NoisyFujitsu: Troubleshooting Ductless Mini-SplitsPanasonic -- Sanyo North American Solutions Division: Air Conditioning and Heat Pump Product Technical Training Photo Credits Yamini Chao/Digital Vision/Getty Images Suggest a CorrectionZoneline Packaged Terminal Air Conditioners Zoneline Packaged Terminal Air Conditioners with Makeup Air Zoneline Vertical Air Conditioners Shop All Zoneline Air Conditioners