American Heating & Air Conditioning | Professional HVAC Repair in Oshkosh, WI

Heat pumps in our area often freeze due to dirty air filters, low refrigerant, or malfunctioning defrost cycles. We start with a comprehensive diagnostic to pinpoint the exact cause—whether it's a simple cleaning, a refrigerant recharge, or a component repair. Our goal is to restore efficient operation and prevent future freeze-ups, protecting your system from damage.

If your AC is blowing warm air, making hissing sounds, or you see ice on the coils, you may have a leak. It's important to call us right away. We use electronic leak detectors to find the source, repair it properly, and recharge the system to the manufacturer's exact specifications. This fixes the cooling issue and prevents further strain on the compressor.

Absolutely. Our preventative maintenance service is designed for our local climate. We clean critical components, check refrigerant levels and pressure, inspect electrical connections, and test the defrost cycle on heat pumps. This proactive care helps catch small issues before they lead to major failures like freezes or leaks, saving you money and extending your system's life.