E6 Troubleshooting - Bosch IDS 2.0 Service Manual

Service Manual

12.3.4 E6 Troubleshooting

LED display output:
Description:
Possible causes:
Table 32
Procedure:
Figure 19
1) See Section 13.6
2) See Appendix 1
Bosch Thermotechnology Corp. | 07.2021
E6
Outdoor DC fan motor fault
 Motor failed
 Fan blade damaged or blocked
 Extreme weather conditions
 Electrical issue
Is ODU fan motor
No
wire (CN3) connection
to control board secure?
Yes
Is the fan blade
Yes
damaged or is
foreign matter
blocking the fan?
No
Are outdoor
Yes
weather conditions
preventing the fan
from operating
normally?
No
Yes
Did the outdoor fan
motor fail?1
No
Yes
Did the control
board fail?2
No
Restart system
Secure connection
Power off and remove
blockage or replace fan
blade
Power off until severe
weather conditions subside
Replace motor
Replace control board
Bosch IDS 2.0 | 45
Data subject to change