Operating instructions

136
Checking the fuse
F1
A
1. Switch off the power.
2. Release the side closures and pivot
the control unit down.
3.
Remove cover A.
4. Check fuse F1 (see connection and
wiring diagram).
Extension kit for heating circuit with mixer
Checking the setting of rotary selec-
tor S1
The rotary selector on the PCB of the
extension kit defines the assignment to
the relevant heating circuit.
Heating circuit Rotary se-
lector S1 set-
ting
Heating circuit with mix-
er M2
(heating circuit 2)
2
2
3
4
5
6
1
0
9
8
7
Heating circuit with mix-
er M3
(heating circuit 3)
4
4
2
3
5
6
1
0
9
8
7
Troubleshooting
Repairs
(cont.)
5772 909 GB