What is a potential issue with an oversized heat pump during summer months?

An oversized heat pump can lead to a situation where it cools the house down too rapidly, which might initially seem like a benefit. However, this quick cooling often results in inadequate dehumidification of the air. When a heat pump operates but does not run long enough to allow the evaporator coil to absorb moisture from the air, the result is increased humidity levels indoors. This can create a humid and uncomfortable environment, negating the benefits of cooling. Therefore, maintaining proper humidity levels is crucial for comfort and air quality, and an oversized heat pump can disrupt this balance by cycling on and off too frequently.