Changing The Ignition Transformer; Cleaning / Changing The Flame Sensor; Cleaning / Changing The Temperature Sensor Exhaust Gas - Kärcher HDS 9/50 De Tr1 Service Manual

11.12.3 Changing the ignition transformer

11.12.4 Cleaning / changing the flame sensor

11.12.5 Cleaning / changing the temperature sensor exhaust gas

146
English 5.906-736.0 Rev. 00 (07/15)
1 Ignition transformer
2 Screw
3 Cable connections
 Remove 3 cables from the ignition transformer.
 Loosen the screw.
 Disconnect the ignition transformer electrically.
NOTE
Observe the cable run with the electrical connection!
NOTE
The two lower cable connections connect the ignition elec-
trodes.
The assignment right/left is not important in this case.
1 Bracket
2 Flame sensor
 Unscrew the support from the burner cover.
 Unclip the catch, open the support.
 Slide out the flame sensor and carefully clean it on the
sensor head (transparent part).
NOTE
When sliding the flame sensor into the support, ensure that
it is in the correct position. Otherwise the support cannot
be closed.
NOTE
When changing the flame sensor, it must be electrically
disconnected.
Observe the cable run with the electrical connection!
1 Exhaust temperature sensor
 Push the two nibs into the support, slide out the temper-
ature sensor.
 Carefully clean the temperature sensor.
ATTENTION
Risk of damage to equipment. The exhaust temperature
sensor in the chimney is connected to the thermostat
switch with a capillary tube. This tube must not be kinked,
as otherwise the sensor will be damaged!