Consider calling a technician for your Frigidaire refrigerator if the H1 code persists even after replacing the thermistor and verifying its functionality. Persistent issues may indicate more complex problems with the control board or sensor system. A professional technician can provide a thorough diagnosis and repair, ensuring your refrigerator operates efficiently and safely. It’s important to address these issues promptly to prevent further damage or inefficiencies. For expert assistance and repair services, visit “Professional Repair Services for Persistent H1 Code in Frigidaire Refrigerators.”