What to do if my Fujitsu ASU12RLF1 shows an indoor room thermistor error?
- MMiranda WhiteSep 12, 2025
If your Fujitsu Air Conditioner displays an indoor room thermistor error, begin by checking the connector to ensure it is securely attached and properly connected, and verify that the thermistor cable is not open. If the thermistor is either open or shorted, replace it and then reset the power.