Indoor Unit Coil Sensor Not Working

About This Service

When the indoor unit coil sensor is not working, the air conditioner cannot monitor coil temperature accurately, which may cause ice formation, water leakage, poor cooling, or sudden AC shutdown. This issue is commonly due to a faulty thermistor, loose or damaged wiring, moisture exposure, or control board errors. Our technicians thoroughly inspect the coil sensor, electrical connections, and PCB to find the exact cause. We repair or replace the defective sensor, recalibrate the system, and ensure proper temperature control to protect the AC from further damage and improve cooling efficiency.