Hitachi RAS-3HVRNS - 8 Troubleshooting

8. T r o u b l e s h o o t i n g
Index
8.1 Initial troubleshooting for IVX an ES Series............................................................................... 196
8.1.1 Checking by means of the 7-segment display.............................................................................. 196
8.1.2 Failure of the power supply to the indoor unit and the remote control switch............................... 197
8.1.3 Abnormal transmission between the remote control switch and the indoor unit........................... 198
8.1.4 Abnormal operation of the devices................................................................................................ 198
8.2 Troubleshooting procedure for IVX an ES Series...................................................................... 204
8.2.1 Alarm code ................................................................................................................................... 204
8.2.2 Troubleshooting in check mode.................................................................................................... 283
8.2.3 Troubleshooting by means of the 7-segment display.................................................................... 290
8.2.4 Troubleshooting by means of the flashing alarm LEDs for RPK-FSNM........................................ 294
8.2.5 Cause of inverter stoppage........................................................................................................... 295
8.3 Procedure for checking each main part ..................................................................................... 299
8.3.1 Self-checking procedure of PCB by means of the Remote Control Switch................................... 299
8.3.2 Self-checking of the remote control switch.................................................................................... 301
8.3.3 Self-Checking procedure of the Indoor Unit PCB (only for RPK).................................................. 303
8 Troubleshooting
195
SMGB0060 rev. 1- 12/2010
8