Hitachi RAS-2-HVNP Service Manual page 219

8. Troubleshooting
RAS-(3-6)H(V)NPE
N O T E
• *1): Surely perform the troubleshooting of the resistance for inrush current prevention (R115/R116) on inverter
PCB. If the resistance for inrush current prevention (R115/R116) fails, the abnormal transmitting occurs.
• *2): Surely perform the troubleshooting of DC fan motor according to section
main parts. If the DC fan motor fails, the normal inverter PCB may be damaged.
• *3): Perform the troubleshooting of the fuses "EF1" on O.U. PCB1 and "EF1" on inverter PCB for fan motor
protection. If the fuses for fan motor protection fail, DC fan motor is not operated normally.
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SMGB0079 rev.0 - 01/2013
Procedure of checking other
8