Hitachi RAS-(4-6)HVRNS2E - Procedure for Checking each Main Part; Self-Checking Procedure of PCB by Means of the Remote Control Switch

8 Troubleshooting
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SMGB0064 rev.0 - 08/2011
8
8.3 Procedure for checking each main part
8.3.1 Self-checking procedure of PCB by means of the Remote Control Switch
Use the following troubleshooting procedure for testing the PCB in the indoor unit and outdoor unit:
If you are using a wireless remote control switch with the built-in receiver part of the wall-type indoor unit and you need to
perform the above checking, perform the following procedure:
1 Turn OFF the power supply.
2 Disconnect the connector (CN25) on PWB(M).
3 Connect the PC-ART.