Bosch IDS 2.0 User Manual

Service Manual Bosch IDS 2.0 | 69
Bosch Thermotechnology Corp. | 07.2021
Data subject to change
13.6 Outdoor Fan Motor
Figure 43
Replace ODU motor
No
No
Yes
No service required
Does ODU motor
run properly?
Yes
Do the
resistance values meet the
requirement from
Table 1?
Re-connect motor wiring
harness at CN3, power on unit
and give call for heating/cooling
Yes
Replace control board
No
Yes
Measure
DC voltage between
P&N pins (Red & Black wire),
is the voltage 370-
385V(DC)?
Restart system
No
Yes
No
Yes
Power off the unit at
breaker, wait 3 minutes
Restart system, give
system a call for
heating/cooling
Unplug the wiring harness
for the outdoor blower motor
from the control board at CN3.
Measure the resistance
between the pins on the wiring
harness (refer to Table 1)
Measure
DC voltage between
+15V&N pins (White & Black
wire), is the voltage 14-
18V(DC)?
Replace control board
Measure
DC voltage between
VSP&N pins (Yellow & Black
wire), is the voltage 1.9-
5.1V(DC)?
Replace control board
ODU fan should run any time there is a call
for cooling/heating.
The normal resistance should be within
+/- 10%.
Pins Wire Value
P-N Red-Black 0.603M
+15V-N White-Black 46.0K
Vsp-N Yellow-Black 40.0K
FG –N Blue-Black ≥1M

Bosch IDS 2.0 Specifications

General

Brand	Bosch
Model	IDS 2.0
Category	Heat Pump
Language	English