Electronic Expansion Valve (Eev) - Bosch IDS 2.0 Service Manual

6 6 | Bosch IDS 2.0

13.3 Electronic Expansion Valve (EEV)

Restart unit, give a call
for heat
Is there a fast
"clicking" noise
when heating mode
begins?
No
Is the voltage
between Red wire
& GND =12V(DC)
Yes
Is the voltage
between
White/Yellow/Orange
/Blue &
GND=12V(DC)
Restart system
Figure 40
Data subject to change
Yes
Are there signs of
abnormal high/low
pressure?
No
No service required
No
Replace control board
No
Replace EEV
Yes
Follow section 13.1 to
check for abnormal
pressure
GND
07.2021 | Bosch Thermotechnology Corp.
Service Manual