Kärcher HDS 7/12 M, Service Manual

Page: 105 / 131

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