Heater Does Not Come On - KERN DBS Service Manual

9.5

Heater Does Not Come ON

Heater does not switch ON.
Open the service menu and check
the heater time count.
Check the heater (S5).
Check the junction cable (H7).
Check the thermal fuse.
Replace the power board assembly.
Replace the main board assembly.
64
Is the cumulative
time less than 5000
hours?
Yes
Is the resistance
greater than 100kΩ ?
No
Is the junction
cable broken?
No
Is the thermal
fuse blown?
No
No
Replace the heater.
Yes
Replace the heater.
Yes
Replace the junction cable.
Yes
Replace the thermal fuse.
DBS-SH-e-1210