What does “Error 04” mean on my Waeco AirConServiceCenter ASC 2500 G LE?
- BbrandonbennettSep 1, 2025
If the Waeco Air Conditioner displays “Error 04”, it indicates that it is not possible to lower the pressure when flushing takes place. Check the air conditioner and connections for leaks, constrictions, and ice build-up. Also, check the pressure transducer calibration.