KERN DBS

9
.
5
He
a
te
r
D
o
es N
o
t
C
o
m
e
O
N
He
a
te
r
does n
o
t switch ON.
No
Is the cumulative
time less than 5000
hours?
Y
es
Is the resistance
greater than 100kΩ ?
Y
es
No
Y
es
Is the jun
c
tion
cable broken?
No
Y
es
Is the the
r
m
a
l
fuse blown?
No
Replace the power board assembly.
Replace the main board assembly.
Replace the thermal fuse.
Check the thermal fuse.
Replace the junction cable.
Check the junction cable (H7).
Replace the heater.
Check the heater (S5).
Replace the heater.
Open the service menu and check
the heater time count.
64 DBS-SH-e-1210