Circle K Heating & Air Conditioning - Cleveland's Experienced HVAC Repair

This is often a sign of a faulty reversing valve, a common issue with heat pumps in our climate. The valve directs refrigerant flow to change modes, and it can get stuck due to wear, debris, or electrical failure. Our technicians can diagnose the exact cause—whether it needs cleaning, a new solenoid, or a full valve replacement—to restore proper function.

A frozen evaporator coil is typically caused by restricted airflow (from a dirty filter or blocked vents) or low refrigerant levels. Both problems prevent proper heat absorption. To prevent this, we recommend regular filter changes and annual professional maintenance. If it's already frozen, turn the system off to let it thaw and call us to diagnose and fix the root cause to prevent compressor damage.

A pre-winter heating system tune-up is crucial. Our comprehensive check includes inspecting heat exchangers, testing safety controls, cleaning components, and ensuring your system operates efficiently and safely. This proactive service can catch issues like a weakening reversing valve or minor refrigerant leaks before they lead to a no-heat emergency during a cold snap.