Mars DVH Series - Page 31

Service Manual - DVH 09/12/18/24 SF Series
Service Manual - DVH 09/12/18/24 SF Series
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After power on, LED3(Green color) and LED2(Red color) will be flash if the unit has some problems.
No.
Problems
LED3
(Green)
LED2
(Red)
IU display
1 Standby, Normal O
X
2 Normal operation X
O
3
IPM malfunction or IGBT over
-strong current protection
☆
X
P0
4
Over voltage or too low voltage protection
O
O
P1
5
EEPROM parameter error
O
☆
E5
6
Inverter compressor drive error
X
☆
P4
7
Inverter compressor drive error
☆
O
P4
8
Inverter compressor drive error
☆
☆
P4
O（light） X（off） ☆（2.5Hz flash）