Hitachi YUTAKI Series - Page 207

205
Troubleshooting procedure
SMGB0066 rev.0 - 12/2009
Troubleshooting
Service Manual
7
 


• ThealarmcodeisdisplayedonthePCB´sdisplay.
• Thecompressorstopsandrestartsautomaticallyin3minutes.
• Thealarmappearsafter6retriesduring30minutes.
– This alarm code is displayed when the compressor current is higher than the set value. Totally 3 minutes during 10
minutes.

Replace ISPM or Dip-IPM
No
Yes
Is the current value
whichactivating,more
thansettingvalue(47.2A)?
Yes
(Inverter components are normal.)
No
(Lower than setting value)
Isdischargepressureexcessivelyhigh?
Checkdischarge,suctionpressureand
refrigerant cycle status
Check clogging of air-side heat exchanger
Check Fan
Install ISPM or Dip-IPM
correctly
No
Yes
Replace ISPM or Dip-IPM
Restart the operation
CheckISPMorDip-IPM?
Check ISPM or Dip-IPM
correctlyinstalled?

caution
Electrical hazard. Risk of electrical shock. Before checking and replacing the inverter parts perform the high -
voltage discharge procedure by referring to section "Checking procedure for main parts".