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MAINTENANCE WTC 600 LP / MP
Service Handbook 08.2004
4.5 Malfunction, Cause and Corrective Action
4.5.1 Metering Station LED and Indicator LEDs at the Switch Cabinet
Indication Malfunction Cause Corrective Action Chap./
Fig.
Red fault LED Pump in metering Metering Refill, check float switch 2.3.1.5,
lights station blocked container empty 3.2,3.3.2.4
Sensor signal Check sensors, 2.3.1.5,
missing check bridges in ETL, 3.3.2
switch cabinet,
check sensor
wiring
Red Backwashing of Not necessary, as 2.3.1.5
regeneration the sand filter or the equipment
LED lights activated carbon automatically
filter active switches on again
Red tank full Float switch in the Drinking water Not necessary, as 2.3.1.5,
LED lights drinking water tank tank full the equipment 3.3.2.4
has switched automatically
switches on again;
Switch defective Check switch, replace if
necessary
Table 27 Malfunction indications at the switch cabinet and their causes
Indication Malfunction Cause Corrective Action Chap./
Fig.
Green LED at LED does not No power supply Have fuse Q2
metering station flash when checked from
pump does not high-pressure electrician
flash pump runs
Operating mode Set operating mode switch (1/10)
contact to manual
Electrical defect Replace pump ETL
Red LED at Pump blocked Metering Refill, check float switch 3.2,
metering container empty 3.3.2.4
station pump
lights red
Cable that Have cable checked 3.3.2.3
indicates empty
is broken
Auxiliary Have auxiliary contactor ETL, SLP
contactor in replaced by electrician
switch cabinet
defective
Table 28 Metering station and metering pump LED