Kärcher HDS 9/16-4 ST Gas Instructions Manual

Also see for HDS 12/14-4 ST Gas: Instructions

Contents

- 12Fault Possible cause Remedy of whomIndicator lamp for exhaustgas thermostat (K) is glowingThe exhaust temperature limiterhas been triggered.Open the hand-spray gun until the plant hascooled down. Switch the plant off and then onon the operating panel to unlock the temper-ature limiter. If the event recurs, call Custom-er Service.OperatorIndicator lamp for protectionagainst calcification (H)glowsThe softener is over. Refill the softener. OperatorInadequate or no flow of de-tergentDosing valve to position "0". Adjusting the detergent metering valve. OperatorDetergent filter blocked or tank isempty.Clean and/or refill. OperatorDetergent suction hoses, deter-gent metering valve or detergentsolenoid valve are leaky orblocked.Check, clean. OperatorElectronics or solenoid valve is de-fective.Replace Customer ServiceFull pressure does not buildup in the applianceFlushed the nozzle. Replace the nozzle. OperatorDetergent tank is empty. Refill detergent. OperatorNot enough water Ensure adequate water supply. OperatorSieve at the water inlet is blocked. Check, dismantle sieve and clean it. OperatorLeaky detergent dosing valve. Check and seal it. OperatorLeaky detergent hoses. Replace OperatorSwimmer valve is jammed. Check and ensure that it moves freely. OperatorSafety valve is leaky. Check the setting; install new washers, if re-quired.Customer ServiceFlow valve is leaky or has been setat a low value.Check valve parts; replace damaged parts;clean the dirt.Customer ServiceSolenoid valve for pressure re-lease is defective.Replace solenoid valve. Customer ServiceHigh pressure pump isknocking; manometer isswaying wildlyVibration dampener is defective. Replace vibration dampener. Customer ServiceWater pump does not suck in ade-quate air.Check suction system and remove leaks. OperatorDevice continuously turns onand off while hand spray gunis openNozzle in spray pipe is blocked. Check, clean. OperatorAppliance is decalcified. See section "Descaling". OperatorSwitching point of the over-currentmonitor has got shifted.Get somebody to reset the over-current monitor. Customer ServiceSieve blocked in the water short-age safe guard.Check, dismantle sieve and clean it. OperatorAppliance does not switch offwhen the hand-spray gun isclosedThe pump has not been fully vent-ed.Set the machine switch to "0" and pull thehand-spray gun until no fluid comes out of thenozzle. Turn on the appliance again. Repeatthis procedure until the full operating pres-sure is reached.OperatorSafety valve or safety valve wash-er is defective.Replace the safety valve and/or the washer. Customer ServicePressure switch of the overflowcontroller.Check pressure switch and overflow controller. Customer Service34 EN