99
Activation of protective device
Maintenance
remocon
alarm
display
Alarm
contents
Judgement conditions
clearing
condition
Judgement and correction
H01
Over-current error Inverter stops after fault is detected.
Recovery
at restart
1.Refrigerant cycle abnormal
overload operations
2.Screws connecting the HIC
circuit between the heat
sink (HIC radiator) are loose
3.Faulty cooling of heat sink (HIC)
4.Check A3 PCB wiring
A3 board power supply
Maintenance
remocon
alarm
display
Alarm
contents
Judgement conditions
clearing
condition
Judgement and correction
No
display!
“Power” LED off
Problem of power supply
on A3 board
Unit does not operate
No alarm displayed
Recovery
at restart
1.Check power supply on board
2.Check board wiring
3.Check fan(s)
4.Check expansion & 4 ways
valves
5.Check A3 board
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