Technical data

8 Servicin
g
BBW 46 / DBW 46
809
8.7.3 Replacement of Temperature Limiter or
Temperature Fuse
NOTE
The replacement procedure for the temperature limiter is
identical with the heater installed or removed.
Perform replacement in accordance with 9.2.2 or 9.2.3 as
applicable.
WARNING
When removing from installed condition allow coolant to
cool down sufficiently to prevent skin burns. Also
depressurise cooling system and refit cap afterwards.
8.7.4 Replacement of Temperature Sensor
NOTE
The replacement procedure for the temperature sensor is
identical with the heater installed or removed.
Perform replacement in accordance with 9.2.4.
WARNING
When removing from installed condition allow coolant to
cool down sufficiently to prevent skin burns. Also
depressurise cooling system and refit cap afterwards.
8.7.5 Replacement of Combustion Air Fan
NOTE
The replacement procedure for the combustion air fan is
identical with the heater installed or removed.
Perform replacement in accordance with 9.2.7.
WARNING
When removing from installed condition allow coolant to
cool down sufficiently to prevent skin burns. Also
depressurise cooling system and refit cap afterwards.
8.7.6 Replacement of Flame Sensor
NOTE
The replacement procedure for the flame sensor is
identical with the heater installed or removed.
Perform replacement in accordance with 9.2.5.
8.7.7 Replacement of Glow Plug
NOTE
The replacement procedure for the glow plug is identical
with the heater installed or removed.
Perform replacement in accordance with 9.2.8.
8.7.8 Replacement of Felt Disk in Burner Head
NOTE
The replacement procedure for the felt disk in the burner
head is identical with the heater installed or removed.
Perform replacement in accordance with 9.2.11.
WARNING
Before replacement disconnect fuel supply line at cover
and close immediately. For removal take precautionary
measures to prevent fires.