Webasto DBW 2010 Service And Repair Manual

Webasto Product N.A., Inc. 36 www.techwebasto.com
CIRCUIT DIAGRAMS DBW 2010/2020/300 COOLANT HEATERS
7.2 DBW 2010 12 V AND 24 V - PRESENT NORTH AMERICAN VERSION
Figure 27: Schematic - DBW 2010 Present Version
B
A C
BLACK
BLUE
VIOLET
GREEN
GREEN
ORANGE
WHITE
ORANGE
WHITE
BLACK
BLUE
GREEN
YELLOW
BROWN
BROWN
BROWN
BLUE
BLUE
GREEN
RED RED
BROWN
BLACK
BLACK
RED/BLACK GREEN VIOLET RED/YELLOW
BROWN
BROWN
BROWN
RED
RED
BROWN
L1
R
L2
E
S4S3
M2
HR
S2
K
BT
M1
A
B
C
C
A
B
M
2
1
1 3
4
5
2 6
52 17
4
68
65
3
4
2
1
85 86
87
30
+
–
CONTROL UNIT
HEATER
1 2
3
45
62
1
1 2
3
4
5
6
7
8
BROWN
M
B
D
C
E
F
G
H
J
S1
DS
F4
F3
F2F1
X1
VIOLET
t°
t° t°
A
BROWN
BROWN BROWN
YELLOW
REDRED
GREEN
RED
RED RED BROWN BROWN VIOLET WHITE BROWN BROWN
BLACK WHITE
X2
BLOWER INTERFACE OPTION
BT BATTERY DS INDICATOR LIGHT E IGNITION ELECTRODES F1 FUSE 15A F2 FUSE 10A F3 FUSE 15A F4 FUSE 20A HR HEATING ELEMENT
(fuel pre-heater)
K RELAY (fuel pre-heater) L1 SOLENOID VALVE L2 IGNITION COIL
M1 COOLANT CIRCULATION PUMP M2 HEATER MOTOR R FLAME DETECTOR S1 ON / OFF SWITCH (heater) S2 PREHEAT (FUEL) THERMOSTAT
(green and blue wires)
S3 CONTROL THERMOSTAT
(white and orange wires)
S4 TEMPERATURE LIMITER
(green and green wires)
X1 9-PIN HARNESS CONNECTOR (round) X2 3-WAY INTERFA CE CONNECTOR
1
2
3
4
8
7
6
5

Webasto DBW 2010 Specifications

General

Brand	Webasto
Model	DBW 2010
Category	Water Heater
Language	English