Technical data

BBW 46 / DBW 46 9 Repair
903
9.2.1.2 Making Electrical Connections
1. Making electrical connection of round connector:
Insert connector pins into connector lower part of
connector. Connector pins must not be interchanged.
Press lower part of connector into upper part until
locked.
2. Making electrical connection of glow plug:
Press glow plug connector into socket until locked.
3. Press electrical cables into grommet as shown in
figure. Slide grommet with cables into top cover.
4. Slide top cover into rear locking wedge first, push
against direction of arrow and then press into forward
locking wedge.
1
2
3
4
5
6
7
8
9
10
11
12
1
2
Top cover
Glow plug connector
Flame sensor cable
Glow plug cable
Motor cable
circulation pump
Temperature sensor
Motor cable
combustion air fan
Rubber grommet
cable
Pin assignment:
1 = circulation pump (brown)
2 = circulation pump (black)
3 = combustion air fan (brown)
4 = combustion air fan (violet)
5 = part load resistor (red)
6 = part load resistor (red)
7 = flame sensor (green)
8 = flame sensor (orange)
9 = temperature sensor (green)
10 = temperature sensor (white)
11 = temperature fuse or limiter (blue)
12 = temperature fuse or limiter (blue)
Fig. 901 Electrical Connections