Is there a limit on how long the string for my chicken door opener can be?

Yes; the maximum distance from the unit to the door in closed position must not exceed 75cm as this will bypass the limit switch and cause the unit to lower the door but as the limit will exceed maximum the unit will keep winding back on itself and the door will raise and the string may even snap. If you wish to exceed 75cm then you must add string from the lower loop to your door, ensuring the original string functions as supplied to yourself.


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