Bosch Climate 5000 Series Service Manual page 32

3 2 | Bosch Climate 5000 Series Ductless Air Conditioner / Heat Pump Outdoor Unit
After power on, LED3 (Green color) and LED2 (Red color) will be ashing if the unit has some problems.
No. Problems
1 Standby for normal
2 Operation normal
3 IPM malfunction or IGBT over-strong current protection
4 Over voltage or low voltage protection
5 EEPROM parameter error
6 Inverter compressor drive error
7 Inverter compressor drive error
8 Inverter compressor drive error
Table 21
- light
X - off
- LED ashes at 2.5 Hz (5 ashes every 2 seconds)
Data subject to change
LED3 (Green) LED2 (Red)
O X
X O
X
O O
O
X
O
04.2020 | Bosch Thermotechnology Corp.
Service Manual
IU display
P0
P1
E5
P4
P4
P4