Ecolab Ecodos-PCB - Trouble Shooting

417101373_Ecodos-PCB.docx
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Rev. 10-03.12
7 Trouble shooting
Symptom
Possible cause
Corrective action
LED does not illuminate
when power is applied from
the dishwasher
Transformer defective, wiring
defective
Check transformer, wiring and replace if
required
PCB defective
Replace PCB
Pump does not work /
solenoid valve not open at
conductivity mode
Measuring probe not connected
to PCB
Connect probe to “1 ... 7”
resp. “8 + 9”
Only in 2-wire mode:
DW filled with DEMI-water
(cond < 100µS/cm)
Connect a wire link between “3” and “4”
ATTENTION: Metering starts the moment
dosing unit stands live and conductivity <
setpoint
Green LED flashes
System in standby mode
Press QUIT button for 2 seconds to return in
operation mode (see also Chapter 4.4)
Red LED flashes
Low level detection
Replace container
No capsule inserted
Insert capsule
Red LED permanent on
(only at inductive mode)
Measuring probe not connected
Connect inductive probe
Measuring probe defective
Replace inductive prob e
Max. dosage time exceeded
Replace container/capsule
Check pump functionality
Check solenoid valve/water supply