Operating instructions

Table Of Contents
- 40
Malfunctions at coin mechanism
Fault Possible cause Remedy By whom
All coin acceptors
reject all coins
Main switch is switched off. Set main switch to “1”. Operator
Incorrectly adjusted time of day or operating
times. Night operation lock active
Check the adjustments on the control. Operator
Lack of water (F 220) Check water supply. Operator
Motor protection switch of the high pressure
pumps was triggered
Reset motor protection switch.
Determine the cause if it reoccurs.
Operator
A single coin ac-
ceptor rejects all
coins
Coin acceptor dirty Clean the coin acceptor (see section „Maintenance
work“)
Operator
Overcurrent on the high pressure pump Acknowledge the fault on the control. Operator
Faults on high pressure pumps
Fault Possible cause Remedy By whom
Irregular water jet
on the hand spray
gun
High-pressure nozzle clogged Clean high-pressure nozzle. Operator
Amount of water supply is too low. Check water supply level (refer to technical data). Operator
Suction hose kinked Check suction hose. Operator
Reduced pressure
at the high-pres-
sure pump
High-pressure nozzle flushed Replace the high-pressure nozzle. Operator
Incorrect high pressure nozzle installed. Check/replace high-pressure nozzle. Operator
Amount of water supply is too low. Check water supply level (refer to technical data). Operator
Check flushing solenoid valve,swimmer valve and
water quality solenoid valve.
Customer Ser-
vice
Pressure does not
build up in the
pump
High-pressure hose to the washdown yard leak-
ing
Check the high-pressure line, replace if necessary.Operator, Cus-
tomer Service
Overflow valve misadjusted or leaking Check and repair the overflow valve. Customer Ser-
vice
The high pressure pump sucks air from the
empty detergent tank
Refill detergent. Bleed the suction line (to speed up
the bleeding process briefly squeeze the suction
hose to the pump repeatedly during operation).
Operator
High pressure
pump is knocking;
manometer is
swaying wildly
High pressure pump is sucking in air. Check suction pipes for water and detergent and
ensure that they are leak-proof.
Operator
Detergent container empty? (see above) Operator
Vibration dampener is defective Replace vibration dampener. Operator
Valve in pump head defective or contaminated.Replace defective valves. Customer Ser-
vice
The pump does not
run
Overcurrent on the high pressure pump Acknowledge the fault on the control. Operator
Disturbed detergent supply
Fault Possible cause Remedy By whom
Inadequate or no
flow of detergent
Filter or hose is blocked Clean the parts. Operator
Leaky detergent hose Replace the hose Operator
Dosing pump incorrectly adjusted or defective. Check the dosing pump and the setting. Operator, Cus-
tomer Service
Dosing pump obstructed by condensate. Drain the condensate from the pressure container
of the compressor.
Customer Ser-
vice
42 EN