Hitachi FSXN Series Service Manual page 262

8 Troubleshooting
Code
IPM error (Overcurrent, voltage decrease, short-circuit)
1
Instantaneous overcurrent
2
Abnormal Inverter fin temperature
3
Inverter overcurrent
4
Inverter voltage decrease
5
Inverter voltage increase
6
Abnormal Inverter transmission
7
Abnormal current sensor
8
Instantaneous power failure
9
Anomaly in the power source phases
Microcomputer reset
11
Earth fault detection
12
Abnormal power source phase
13
Inverter failure
16
Abnormal start-up
21
• Cause for fan controller stoppage (Check the item F)
Code
Driver IC error
1
Instantaneous overcurrent
2
Abnormal Inverter fin temperature
3
Inverter overcurrent
4
Decrease in fan controller voltage
5
Increase in fan controller voltage
6
Abnormal fan controller transmission
7
Abnormal current sensor
8
Instantaneous power failure
9
Microcomputer reset
11
Earth fault detection
12
Reverse rotation
15
Fan controller retry
16
Abnormal control
17
Abnormal start-up
21
256
SMGB0065 rev. 1 - 12/2010
Cause
Cause