Error Messages With Service Requirement - Kärcher HDS Middle series Service Manual

Unit Function

2.2.4 Error messages with service requirement

Note
One display is used here for several faults. It may be possible to localise the fault by reading
out the fault memory.
Display Explanation
Low-water protection sticks
10 short start-ups/leakage
Contactor does not switch
Temperature sensor (NTC) is defective
Flame sensor detects impermissible state
RFID read-write electronics are defective
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HDS Middle Range / HDS Premium Range
Note
Check low-water protection.
Remove leaks in the high-
pressure system.
Check contactor.
Check current transformer
installation.
This fault is not saved.
Check NTC
NTC cable chafed bare
Possible causes:
- Fuel solenoid valve
- Fuel line/filter
- External light
- Inspection glass is sooty
- Scale in combustion chamber
- Fuel empty and
Check connection with RFID
read-write electronics.
Service Manual 04.2008
fuel empty signal is defective