Karcher HDS 9-14-4 ST - Manual (Page 33)

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Fault Possible cause Remedy of whom
Indicator lamp for protection
against calcification (H)
glows The softener is over. Refill the softener. Operator
Inadequate or no flow of de-
tergent Dosing valve to position "0". Adjusting the detergent metering valve. Operator
Detergent filter blocked or tank is
empty. Clean and/or refill. Operator
Detergent suction hoses, deter-
gent metering valve or detergent
solenoid valve are leaky or
blocked. Check, clean. Operator
Electronics or solenoid valve is de-
fective. Replace Customer Service
Full pressure does not build
up in the appliance Flushed the nozzle. Replace the nozzle. Operator
Detergent tank is empty. Refill detergent. Operator
Not enough water Ensure adequate water supply. Operator
Sieve at the water inlet is blocked. Check, dismantle sieve and clean it. Operator
Leaky detergent dosing valve. Check and seal it. Operator
Leaky detergent hoses. Replace Operator
Swimmer valve is jammed. Check and ensure that it moves freely. Operator
Safety valve is leaky. Check the setting; install new washers, if re-
quired. Customer Service
Flow valve is leaky or has been set
at a low value. Check valve parts; replace damaged parts;
clean the dirt. Customer Service
Solenoid valve for pressure re-
lease is defective. Replace solenoid valve. Customer Service
High pressure pump is
knocking; manometer is
swaying wildly Vibration dampener is defective. Replace vibration dampener. Customer Service
Water pump does not suck in ade-
quate air. Check suction system and remove leaks. Operator
Device continuously turns on
and off while hand spray gun
is open Nozzle in spray pipe is blocked. Check, clean. Operator
Appliance is decalcified. See section "Descaling". Operator
Switching point of the over-current
monitor has got shifted. Get somebody to reset the over-current mon-
itor. Customer Service
Sieve blocked in the water short-
age safe guard. Check, dismantle sieve and clean it. Operator
Appliance does not switch off
when the hand-spray gun is
closed The pump has not been fully vent-
ed. Set the machine switch to "0" and pull the
hand-spray gun until no fluid comes out of the
nozzle. Turn on the appliance again. Repeat
this procedure until the full operating pres-
sure is reached. Operator
Safety valve or safety valve wash-
er is defective. Replace the safety valve and/or the washer. Customer Service
33 EN