heat pump service

https://theairqualitysystemsstore.alderbrief.com/posts/how-to-choose-the-right-air-quality-systems-for-your-home

When the heat pump starts making weird noises or not heating like it used to, it's probably time for service. A good tech will check the refrigerant levels, clean the coils, and make sure the reversing valve is working right. Regular maintenance catches little issues before they turn into expensive repairs. I had mine done last fall and the house felt way more comfortable through winter.