Hello Pickster42,
did you watch the machine as the fault appears?
1. The water-flow is measured by the "Flowmeter". If the pulses are not the right way, the "Water" - LED will turn on.
2. The Grinder will stop if the switch will give no feedback within about 20s.
Possible reasons could be:
1. The level of the 5V-supply voltage on both sensors is less then 5V.
2. The flow of water is blocked by lime and
3. The limit swich for detecting the amount coffee is not working.
Anhang anzeigen 3158
Try the following:
1. Measure the voltage at flow-meter supply
2. and the pulse output
2. Examine the dose-chamber and the switching of the limit switch
Best regards
KSB