Kärcher HDS 7/12 M Service Manual page 105

Display Explanation
Exhaust thermostat has triggered.
Cable break or short circuit with water temperature
sensor
Flame sensor does not detect a flame although the
burner was switched on
The flame sensor recognised bright although the
burner was off
RFID write-read electronics defective.
Cable break with level sensor fuel occurred
Cable break with level sensor detergent tank 1 oc-
curred
Cable break with level sensor detergent tank 2 oc-
curred
Software version 1.1
Remark
Decarbonize boiler.
Check exhaust gas thermo-
stat.
Check temperature sensor.
Clean the looking glass.
Check fuel supply.
Incidence of secondary light
at the flame sensor.
Combustion chamber
scaled.
Solenoid valve does not
close.
RFID write-read electronics
is defective - replace.
Check level sensor fuel.
Check level sensor RM 1.
Check level sensor RM 2.
This is no fault.
Error merely appears for de-
sign reasons, because the
display is in the error menu.
English 5.906-432.0 Rev. 00 (06/15)
105