Bosch IDS 2.0 User Manual

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Bosch IDS 2.0 Service Manual
07.2021 | Bosch Thermotechnology Corp.
Data subject to change
12.3.3 E5 Troubleshooting
LED display output: E5
Description: High/low voltage protection
Possible causes:
 Power supply ≥270V
 Power supply <172V
 Control board issue
Table 31
Procedure:
Figure 18
Restart system
Replace control board
Yes
No
Yes
Correct power supply/call
utility provider
Correct power supply/call
utility provider
No
Yes
Is the high voltage power supply
≥270V?
<172V?
Is the voltage
between P-N (CN3)
< 310VDC?
No
If power supply is between 180 and 210 V, System
protection code U** will be displayed on the LED
screen. Frequency will be limited to 50 Hz or less.
Is the high voltage power supply

Bosch IDS 2.0 Specifications

General

Brand	Bosch
Model	IDS 2.0
Category	Heat Pump
Language	English