37
No.
Problems
LED4
(Green)
LED3
(Red)
IU display
1
standby for normal
O
X
2
Operation normally
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
Over voltage or too low voltage protection
O
☆
P1
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
）
For MCHS-22NiH2,
Summary of Contents for MCHS-09NIH1
Page 11: ...9 6 Wiring Diagram 6 1 Indoor Unit MEHS 09NiH1 MEHS 12NiH1 MEHS 09NiH2 MEHS 12NiH2 MEHS 18NiH2...
Page 12: ...10 MEHS 22NiH2...
Page 13: ...11 6 2 Outdoor Unit MCHS 09NiH1 MCHS 12NiH1...
Page 14: ...12 MCHS 09NiH2 MCHS 12NiH2...
Page 15: ...13 MCHS 18NiH2 MCHS 22NiH2...
Page 16: ...14 For MCHS 12NiH2 For MCHS 09NiH1 MCHS 12NiH1...
Page 17: ...15 For MCHS 09NiH2 For MCHS 18NiH2...
Page 18: ...16 For MCHS 22NiH2...
Page 50: ...48 P W P N...
