Bosch IDS 2.0 User Manual

Service Manual Bosch IDS 2.0 | 47
Bosch Thermotechnology Corp. | 07.2021
Data subject to change
12.3.6 E9 Troubleshooting
LED display output: E9
Description: EEPROM IC20 fault
Possible causes:
 EEPROM IC20 poor contact
 EEPROM IC20 improperly installed
Table 34
Procedure:
Figure 21
Replace PCB
Power off and correct the
contact
Yes
Power off and correct the
connection
No
Yes
Is EEPROM IC20
chip improperly
installed?
No
Does EEPROM
IC20 have poor
contact?
EEPROM IC20 Chip

Bosch IDS 2.0 Specifications

General

Brand	Bosch
Model	IDS 2.0
Category	Heat Pump
Language	English