Thermostat exposed to cold draft Outside unit coil is blocked by snow, ice, etc. Thermostat located near heat source, such as appliances, TV, etc. Once the thermostat is set, it should be left alone. The air filters inside the system need to be checked, cleaned, or changed each month. The outdoor fan should not be covered or obstructed, so it can receive proper air flow.
Air movement causes some evaporation of skin moisture causing the sensation of coolness.
By setting the proper supply air speed on a heat pump it will provide comfortable air temperatures. Inspect each month and change or clean filters as needed. Time intervals frequently vary with each family. The most important aspect of efficient operation of your heat pump is proper air flow. Dirty air filters will severely limit air flow, which can cause the compressor to run continuously.