How to fix E1 error on AUX ASW-H09B5B4/FAR3DI-C3?
- MMelissa HendersonAug 22, 2025
If your AUX Air Conditioner displays error code E1, it indicates an indoor unit temperature sensor error. This is detected as a short circuit or open circuit during the main PCB's inspection of the indoor unit. Check whether there’s resistance problem, short circuit or open circuit in the sensor; the resistance value shall be within a reasonable range (15K? under the temperature of 25? for frequency conversion machine).