有几个原因，你的热泵可能不能bc菠菜导航你的家. 换向阀, 这会改变制冷剂流经系统的方式吗, 可能是卡, which would result in your heat pump staying on “heat,” regardless of your settings. 制冷剂水平可能过低，无法有效地将热量输送到系统周围, meaning it can’t produce cold air to blow. 或者，吹风机和风扇可能已经失灵, meaning there’s cold air to be had — but you’re not going to get to feel it.