Bill Harwell Heating & Air Conditioning - Tecumseh's Top-Rated HVAC Services

Yes, a faulty reversing valve is a common culprit when a heat pump struggles to switch between heating and cooling modes, especially here in Tecumseh where we rely on them year-round. This valve directs refrigerant flow, and when it gets stuck, your system can't provide the right air temperature. Our technicians can diagnose valve issues and perform precise repairs to restore proper function.

For most Tecumseh homes, we recommend checking your filter every month and replacing it at least every 90 days. If you have pets, allergies, or significant dust, changing it every 30-60 days is better. A clogged filter is the most common cause of HVAC issues—it strains your system, reduces airflow, and can even lead to frozen coils or overheating. Regular changes are a simple way to improve efficiency and prevent repairs.

Watch for uneven heating or cooling, strange noises (like rattling or buzzing), a sudden spike in your energy bill, or weak airflow from your vents. These are often warnings of issues like a failing component or a blockage. In our local climate, preventative maintenance before peak seasons is the best way to catch small problems—like a dirty filter stressing the system—before they become expensive breakdowns.