Fault, Possible cause, Remedy – Karcher HDS 12-14-4 ST Gas User Manual
Page 34: Of whom, The exhaust temperature limiter has been triggered, Operator, The softener is over, Refill the softener, Inadequate or no flow of detergent, Dosing valve to position "0
-
12
Fault
Possible cause
Remedy
of whom
Indicator lamp for exhaust
gas thermostat (K) is glowing
The exhaust temperature limiter
has been triggered.
Open the hand-spray gun until the plant has
cooled down. Switch the plant off and then on
on the operating panel to unlock the temper-
ature limiter. If the event recurs, call Custom-
er Service.
Operator
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 monitor. 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
Pressure switch of the overflow
controller.
Check pressure switch and overflow controller.
Customer Service
34
EN