Fuji Electric FRENIC-HVAC User Manual page 633

This chapter describes troubleshooting procedures to be followed when the inverter malfunctions or detects
an alarm or a light alarm condition. First check whether an alarm code or "light alarm" indication is displayed,
and then proceed to the respective troubleshooting item.
9.1 Protective Functions .................................................................................................................................... 9-1
9.2 Before Proceeding with Troubleshooting .................................................................................................... 9-2
9.3 If an Alarm Code Appears on the Monitor .................................................................................................. 9-3
9.3.1 Alarm Codes ....................................................................................................................................... 9-3
9.3.2 If the "Light Alarm" Indication Appears ........................................................................................... 9-22
9.4 Nothing appears on the monitor ................................................................................................................ 9-24
9.4.1 Abnormal motor operation ................................................................................................................ 9-24
9.4.2 Problems with inverter settings ......................................................................................................... 9-31
9.5 If Other than an Alarm Code is Displayed ................................................................................................ 9-33
TROUBLESHOOTING
Contents
Chapter 9