Heat Controller B-DVH09SD-0 Service Manual page 31

Heat Controller
DVC18SD-1 and DVH18SD-1 LED3 and LED4 Error Codes:
KEY: ☆ = Flashing Light
No. Error
1 Standby (Normal Operation)
2 Operating Normally
3 IPM malfunction or IGBT over-strong current protection
4 Over voltage or too low voltage protection
5 Over voltage or too low voltage protection
6 Inverter compressor drive error
7 Inverter compressor drive error
8 Inverter compressor drive error
X = Light is Off O= Solid Light is On
31
DVC/DVH Inverter Mini-Split
LED4 LED3 Indoor Unit
(Green) (Red)
O X
X O
X
☆
O O
O
☆
X
☆
O
☆
☆ ☆
Display
N/A
N/A
P0
P1
P1
P4
P4
P4