Hitachi RPI-0.8FSG1 Service Manual page 88

TROUBLESHOOTING
Alarm
Code
# This alarm code appears when one of the following alarms occurs three times within 6 hours, which
may result in serious compressor damages, if the outdoor unit is continuously operated without
removing the cause.
Alarm Code:
These alarms are able to be checked by the CHECK Mode 1. Follow the action indicated in each
alarm chart.
These alarms are cleared only by turning OFF the main power switch to the system. However,
careful attention is required before starting, since there is a possibility which will result in
serious damages to the compressors.
1-78
Content of Abnormality
02 Tripping of Protection Device in Outdoor Unit
07 Decrease in Discharge Gas Superheat
08 Increase in Discharge Gas Temperature
39 Abnormality of Running Current at Constant Comp.
43 Pressure Ratio Decrease Protection Activating
44 Low Pressure Increase Protection Activating
45 High Pressure Increase Protection Activating
46 High Pressure Decrease Protection Activating
47 Low Pressure Decrease Protection Activating
Compressor Protection