Digital outputs 08=DO4
02 Wire breakage A wire breakage has been detected on the respective output. Check wiring!
Troubleshooting aids:
remove the connector and measure the resistance on respective terminals of the plug connector to check
the individual valve coils.
On-off valves typically have a 15 to 30 ohm coil resistance.
If several outputs are reporting broken wires, an interrupted common return line is probably the cause.
If the resistance measurement cannot detect a problem, the cross-section of the common return line may
be too small.
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