Heat pump replacement is not a decision to be taken lightly. It can be expensive and complicated, especially for homeowners unfamiliar with the process. The good news is that there are several signs that it’s time for heat pump replacement, which can help you decide when to call in a professional and replace your system. Here are several telltale signs that it’s time for heat pump replacement as given by heat pump repair professionals. Strange noises or vibrations A heat pump is essentially a fan that circulates the refrigerant through the compressor, condenser, and expansion valve to cool air in summer months and warm air in winter months. As with…