Conrad Electronic 75 10 74 Mode D'emploi page 87

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Troubleshooting
With this code lock, you have purchased a state of the art product
that is safe to operate.
Nevertheless, problems or faults might occur.
This is why, we would like to describe here how possible troubles
can be solved:
Always adhere to the safety instructions!
Problem
LED „MAINS"
does not flash
Output
does not switch
Code lock is
programable
Repairs other than those described above should only
be performed by an authorised electrician.
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Solution
Are the lines correctly connected?
Is the device voltage available at the
code lock?
Did you enter the correct user code?
Is your code lock correctly connected and
programmed?
Are the connected devices functioning?
Did you enter the correct master code?
Are you using the legal program code?